1 . x + y = 3, x – y = 1 হলে, 4xy এর মান-
- A. 4
- B. 2
- C. -8
- D. 8
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2 . যদি xyz <0 এবং z< 0 হয়, তবে নিচের কোনটি ?
- A. xy> 0
- B. xy < 0
- C. xy < z
- D. কোনােটিই না
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3 . A proxy server is used for which of the following?
- A. To provide security against unauthorized users
- B. To process client requests for web pages
- C. To process client requests for database access
- D. None
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4 . x - y = 2 এবং xy= 24 হলে x + y এর মান ___
- A. ± 4
- B. ± 5
- C. ± 7
- D. ± 10
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5 . x - y = 4 এবং xy = -9 হলে (x+y)2 এর মান কত?
- A. -20
- B. 52
- C. 25
- D. 32
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6 . x+y=4, x-y=2 হলে xy এর মান -
- A. (2,4)
- B. (4,2)
- C. (3,1)
- D. (1,3)
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7 . x-y =2 এবং xy =24 হলে (x+y)2 এর মান কত?
- A. 90
- B. 22
- C. 100
- D. 20
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8 . x2 + y2 = ৮ এবং xy = ৭ হলে (x + y)2 এর মান কত?
- A. ১৪
- B. ১৬
- C. ২২
- D. ৩০
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9 . x-y=2 এবং xy=15 হলে, (x+y) এর মান কত?
- A. 4
- B. 8
- C. 10
- D. 12
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10 . xyz =240 হলে y এর মান কোনটি হতে পারে না?
- A. 2
- B. 3
- C. 5
- D. ০
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11 . x³ - 2x², x²- 4 ও xy - 2y এর গ. সা. গু. কত?
- A. (x + 2)
- B. (x - 2 )
- C. (x + 4 )
- D. x (x - 2 )
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12 . Triangle XYZ and two angles measure are shown in the diagram below. What is the measure of ∠Y?
- A. 50°
- B. 85°
- C. 90°
- D. 95°
- D. None of these
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13 . If (x+y)=8 and (x-y)=6, what is the value of xy?
- A. 7
- B. 6
- C. 1
- D. 3
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14 . The equation x+y=xy =x/y has how many real solution?
- A. 0
- B. 1
- C. 2
- D. 2
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15 . যদি x+2y=4 এবং xy=2 হয়, তবে x= কত?
- A. ২
- B. ০
- C. ১২
- D. ১
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16 . XYZ কোম্পানি ১০০,০০০ টাক ঋণপরিশোদের জন্য শেয়ার ইস্যু করল। এতে হিসাব সমীকরণে কি প্রভাব পড়বে?
- A. সম্পদও মালিকানাস্বত্ব বৃদ্ধি
- B. সম্পদ ও দায় বৃদ্ধি
- C. দায় বৃদ্ধি ও দায় হ্রাস
- D. মালিকানস্বত্ব বৃদ্ধি ও দায় হ্রাস
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17 . Water is to Oxygen as salt to-
- A. iron
- B. sodium
- C. calcium
- D. protein
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18 . x + y = 6 হলে xy এর বৃহত্তম মান-
- A. 12
- B. 36
- C. 9
- D. -12
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19 . x -y = 2 এবং xy =24 হলে x+y এর মান কত?
- A. 10
- B. ± 8
- C. ± 10
- D. ± 6
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20 . X-Y =2 এবং XY =24 হলে X এর মান কত?
- A. 3
- B. 4
- C. 5
- D. 6
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21 . x2+y2=18এবং xy=6 (x−y)2এর মান কত ?
- A. 4
- B. 6
- C. 8
- D. 12
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22 . What is the antonym of 'orthodoxy' ?
- A. renown
- B. trepidation
- C. unconventionality
- D. inquisitiveness
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23 . The more hemoglobin one has, the more oxygen is carried to---cells.
- A. its
- B. our
- C. their
- D. one's
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24 . If xy>0 and yz<0, Which of the followings must be negative :
- A. xy2z
- B. xyz2
- C. xyz
- D. None
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25 . If x is an odd integer and y is an even integer which of the statements is(are) always true? I. x + y is odd II. xy is odd III. 2x + y is even.
- A. I only
- B. II and III only
- C. I and III only
- D. III only
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26 . If X is an odd integer and Y is an even integer, which of the following statements is(are) always true? I. X + Y is odd II. XY is odd III. X + 2Y is even
- A. I only
- B. II and III only
- C. I and III only
- D. III only
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27 . If the value of XYZ company stock drops from Tk.25 per share to Tk.21 per share, what is the percent of the decrese?
- A. 4%
- B. 8%
- C. 12%
- D. 16%
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28 . Company A owns 40% of the stock in the XYZ Corporation. Company B owns 15000 shares. Company C owns rest of the shares. If company C owns 25% more share than company A, how many shares does company A own?
- A. 60000
- B. 75000
- C. 90000
- D. 45000
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29 . If x/y = -1 and xy = -1, then x - y =?
- A. -1
- B. -2
- C. 2
- D. 1
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30 . x - y = 2 এবং xy = 24 হলে, x-এর ধনাত্মক মানটি-
- A. 3
- B. 5
- C. 4
- D. 6
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31 . xyz = 240 হলে y এর মান কোনটি হতে পারে না?
- A. 2
- B. 3
- C. 5
- D. 0
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32 . x + y = 6 এবং x - y = 4 হলে xy এর মান কত?
- A. 4
- B. 5
- C. 6
- D. 3
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33 . যদি xy < 0 এবং y > 0 হয়, তবে নিচের কোনটি অবশ্যই ভুল -
- A. (2y + 3y) (2 - x) >6
- B. (2y + 3y) (2 - x) >6
- C. (2x + 1) (2 - x) <6
- D. সবগুলো সঠিক
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34 . যদি a^x = b, b^y = c এবং c^z = a হয় তবে xyz এর মান কত হবে?
- A. 2
- B. 1
- C. -2
- D. -1
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35 . x + y = ১৭ এবং xy = ৬০ হলে x - y এর মান কত?
- A. ৭
- B. ৮
- C. ৯
- D. ১০
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36 . x - y = 1; xy = 56 হলে x+y = কত?
- A. 16
- B. 15
- C. 225
- D. -223
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37 . 2x2 - 5xy + 2y2 এর একটি উৎপাদক হবে?
- A. 2y - x
- B. x - 2y
- C. 2(x - y)
- D. x - 3y
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38 . x² + 2xy - 2y - 1 এর উৎপাদক কত?
- A. (x + 2y + 1)(x - 1)
- B. (x + y + 1)(x + 1)
- C. (x + 2y + 1)(x + 1)
- D. (x + y + 1)(x - 1)
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39 . x3y - xy3 এবং x2 - y2 এর ল.সা.গু কত?
- A. (x - y)
- B. xy(x + y)
- C. xy(x - y)
- D. xy(x - y)(x + y)
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40 . x + yx + x - yy + x2 - y2xy = কত?
- A. yx
- B. xy
- C. 2xy
- D. 2yx
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41 . xy সাথে কত যোগ করলে যোগফল 2yx হবে?
- A. 2y2 - x2xy
- B. x2 - 2y2xy
- C. 2x2 - y2xy
- D. x2 - y2xy
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42 . About fifty years ago, plant physiologists set out to grow roots, by themselves in solutions in laboratory flasks. The scientists found that the nutrition of isolated roots was quite simple. They required sugar and usual minerals and vitamins. However, they did not require organic nitrogen compounds. These roots got along fine on mineral inorganic nitrogen. Roots are capable of making their own proteins and other organic compounds. These activities by roots require the energy of course. The process of respiration uses sugar to make the high-energy compound ATP, which drives the biochemical reactions. Respiration also requires oxygen. Highly active roots require a good deal of oxygen. 1.What is the main topic of the passage ?
- A. The relationship between a plant's roots and its shoots
- B. what can be learned by growing roots in isolation
- C. How plants can be grown without roots
- D. How plants can be grown without roots
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43 . About fifty years ago, plant physiologists set out to grow roots, by themselves in solutions in laboratory flasks. The scientists found that the nutrition of isolated roots was quite simple. They required sugar and usual minerals and vitamins. However, they did not require organic nitrogen compounds. These roots got along fine on mineral inorganic nitrogen. Roots are capable of making their own proteins and other organic compounds. These activities by roots require the energy of course. The process of respiration uses sugar to make the high-energy compound ATP, which drives the biochemical reactions. Respiration also requires oxygen. Highly active roots require a good deal of oxygen. The Solitary Reaper in Wordsworth 's poem was singing -
- A. a delightful song
- B. a ballad
- C. nursery song
- D. a melancholy
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44 . xyz = 240 হলে নিম্নের কোনটি y-এর মান হতে পারে না?
- A. 0
- B. 2
- C. 5
- D. 3
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45 . x + y = 14 হলে xy-এর বৃহত্তম মান কত?
- A. 36
- B. 49
- C. 65
- D. 63
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46 . x + y = 6 হলে xy এর বৃহত্তম মান কত?
- A. 9
- B. 7
- C. -8
- D. 12
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47 . 2xy + y = 14 এবং x = 3 হলে 2y + x = কত?
- A. 5
- B. 6
- C. 7
- D. 8
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48 . x + y = 3 হলে, x3 + y3 + 9xy -এর মান কত?
- A. 36
- B. 42
- C. 48
- D. 27
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49 . x + y = 5, xy = 6 হলে, x3 + y3 = কত?
- A. 55
- B. 75
- C. 35
- D. 105
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50 . y- এর মান কত হলে 16x2 - xy + 25 একটি পূর্ণবর্গ রাশি হবে?
- A. 48
- B. 55
- C. 40
- D. 25
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51 . x - y = 3 এবং xy = 108 হলে, x2 - y2 এর মান কত?
- A. -63
- B. ±63
- C. 63
- D. 27
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52 . x + y = 3 এবং xy = 2 হলে, x3 + y3 এর মান কত?
- A. 27
- B. 9
- C. 24
- D. 12
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53 . x + y = √7, x - y = √3 হলে, 8xy(x2 + y2) এর মান কোনটি?
- A. 8
- B. 40
- C. 20
- D. 25
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54 . x + y + z = 15 এবং x2 + y2 + z2 = 83 হলে, xy + yz + zx এর মান কোনটি?
- A. 71
- B. 72
- C. 32
- D. 16
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55 . x3 + y3 + 3xy(x + y)(x + y)2 - 4xy ÷ (x - y)2 + 4xyx3 - y3 - 3xy(x -y)
- A. x2 + y2
- B. x2 - y2
- C. x + y
- D. x + y2
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56 . যদি (x - y)2 = 14 এবং xy = 2 হয় তবে x2 + y2 = কত?
- A. 12
- B. 14
- C. 17
- D. 18
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57 . x + y = 12 এবং x - y = 2 হলে xy-এর মান কত?
- A. 35
- B. 140
- C. 70
- D. 144
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58 . কোন ত্রিভুজের ভূমিসংলগ্ন কোণদ্বয়ের সমদ্বিখণ্ডকদ্বয় বিপরীত বাহু দুটিকে X ও Y বিন্দুতে ছেদ করে। XY ভূমির সমান্তরাল হলে প্রমাণ করা যায় যে, ত্রিভুজটি--
- A. সমকোণী
- B. সমদ্বিবাহু
- C. সমবাহু
- D. একান্তর
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59 . x2 - 4xy + y2 +8x - 2y - 5 = 0 নির্দেশ করে?
- A. প্যারাবোলা
- B. উপবৃত্ত
- C. বৃত্ত
- D. হাইপারবোলা
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60 . 3x2y + 6xy2, 9x2 - 36y2 এর গ.সা.গু. কত?
- A. x + 2y
- B. 3 (x - 2y)
- C. 3 (x + 2y)
- D. x (x + y)
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61 . 4x2y2z এবং 6xy2 এর ল.সা.গু. কত?
- A. 24xyz
- B. 24x2yz
- C. 12x2y2z
- D. 12xy2z
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62 . — air is composed of about 78 percent nitrogen and |. only about 21 percent oxygen, is a little known fact -_. on the streets.
- A. How that
- B. This
- C. When
- D. That
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63 . If the oxygen supply in the atmosphere not replaced by plants, it would soon be exhausted.
- A. is
- B. was
- C. were
- D. had been
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64 . Without oxygen, human beings cannot live' the above sentence states.
- A. a fact
- B. a belief
- C. a claim
- D. a notion
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65 . Select the pair that expresses a relationship similar to that expressed in the original pair : Oxygen : Respiration
- A. Improvement : Care
- B. Photography : Camera
- C. Sunlight : Photosynthesis
- D. Hydrogen : Digestion
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66 . x + y এবং x - y = 8 হলে, xy -এর মান কত?
- A. 20
- B. 40
- C. 60
- D. 80
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67 . Identify the sentence in which the word element (s) refers to 'suitable or favourable environment. (1) There is an element of truth in your story. (2) Water is composed of elements of hydrogen and oxygen. (3) I feel out of my elements in political discussions. (4) Water is a natural element for fish
- A. (4)
- B. (3)
- C. (1) and (2)
- D. (1)
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68 . x+y=7 এবং xy=10 হলে (x-y)2এর মান কত?
- A. ৩
- B. ৬
- C. ৯
- D. ১২
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69 . যদি x+y=১৭, এবং xy = ৬০ হয় তবে x-y এর মান কত?
- A. ৯
- B. ৫
- C. ৭
- D. ৮
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70 . The operation @ is defined for all integers x and y as x @ y=xy-y. If x and y are positive integers, which of the following cannot be Zero?
- A. x@y
- B. y@x
- C. (x-y)@y
- D. (x+1)@y
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71 . x-1=4 এবং xy =60 হলে, X+Y এর মান কত?
- A. 16
- B. ± 16
- C. 4
- D. ± 64
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72 . _________ that there are billions of stars in our galaxy.
- A. In the belief
- B. It is believed
- C. The belief
- D. Believing
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73 . A legal combination of ABC Group and XYZ Group was approved at a joint board of diresteis meeting select the closest meaning combination.
- A. Memorandum
- B. Reconciliation
- C. Merger
- D. Buyout
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74 . If X and odd negative integer and Y is an even position integer then XY must be------.
- A. Odd and positive
- B. Odd and negative
- C. Even and positive
- D. Even and negative
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75 . x+y=6 হলে , xy এর বৃহত্তম মান _
- A. 9
- B. 7
- C. 8
- D. 12
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76 . Oxygen- এর পারিভাষিক শব্দ কোনটি?
- A. উদযান
- B. অম্লজান
- C. চক্রযান
- D. বলয় জান
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77 . x+y=6 এবং xy =8 হলে ( x − y ) 2 এর মান কত?
- A. 6
- B. 4
- C. 8
- D. 12
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78 . নিচের অক্ষরগুলোর মধ্যে বাম দিক থেকে অষ্টাদশ অক্ষরের বাম পাশের দশম অক্ষর কোনটি? ABCDEFGHIJKLMNOPQRSTUVWXYZ
- A. H
- B. I
- C. G
- D. J
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79 . x + y = 7 এবং xy = 10 হলে ( x − y ) 2 এর মান কত?
- A. 3
- B. 6
- C. 9
- D. 12
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80 . The most abundant element in the earth 's crust is oxygen . The second most abundant element is the earth's crust is -
- A. Hydrogen
- B. Silicon
- C. Nitrogen
- D. Brass
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81 . If a=x and b=y and xy=0, then which of the following must be true?
- A. a
- B. b
- C. a=0 or b=0
- D. none of these
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82 . If x>y>1 and xy=z, which of the following is true?
- A. y
- B. y=z
- C. z=1
- D. none of these
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83 . If xy>0 and x<0, which of the following must be negative?
- A. -x
- B. y
- C. -y
- D. (x-y)
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84 . IF x+y=9 and x-y = 5 the value of 4xy is:
- A. 24
- B. 36
- C. 28
- D. 32
- D. None of these
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85 . If 'ABCD' stands for " WXYA' then 'BAD' stands for --
- A. XWZ
- B. XYZ
- C. WXZ
- D. YZW
- D. None of them
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86 . At XYZ Company, the ratio sales to gross profit is 4:3 and the ratio of gross profit to net profit is 3:1, what is the ratio of net profits to sales?
- A. 1:4
- B. 4:1
- C. 2:1
- D. 1:2
- D. None of these
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87 . If the stock value of XYZ Company drops from TK. 25 per share to TK. 21 per share, what is the percentage decrease ?
- A. 4%
- B. 8%
- C. 12%
- D. 16%
- D. None of these
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88 . XYZ company sold 800 units of watches for TK.800 each and 1,000 units of watches for TK. 500 each. If the company's cost of producing each unit of watch was TK. 600, what was the company's profit or loss ?
- A. TK. 1,600 loss
- B. TK. 600 loss
- C. No profit or loss
- D. TK. 600 profit
- D. None of these
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89 . x2 + y2 = 8 এবং xy = 7 হলে (x + y)2 এর মান কত?
- A. 18
- B. 15
- C. 27
- D. 22
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90 . If x=2y =3z and xyz =36 , what is the value of z?
- A. 2
- B. root 2
- C. root 3
- D. 3
- D. none of these
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91 . If x is an odd integer and y an even integer which of the following statements is (are) alwayes true? 1. x+y is odd 2. xy is odd 3. 2x+y is even
- A. 1 only
- B. 2 and 3 only
- C. 3 only
- D. 1 and 3 only
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92 . If 2x=7 and 3y=2, then what is the value of 9xy?
- A. 21
- B. 18
- C. 22
- D. 28
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93 . Galaxy --এর পরিভাষা কি?
- A. তারাগুচ্ছ
- B. নীহারিকা
- C. গ্রহানু
- D. নক্ষত্রবিথী
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94 . x + y = 6, xy = 8 হলে (x - y)± কত?
- A. 4
- B.
- C.
- D.
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95 . x + y = 7 এবং xy = 12 হলে x3 + y3 এর মান কত?
- A. 91
- B.
- C.
- D.
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96 . x + y = 7 হলে, xy এর বৃহত্তম মান কত?
- A. 10
- B. 12
- C. 14
- D. 6
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97 . দুটি সংখ্যার গড় xy. একটি সংখ্যা x হলে অপর সংখ্যাটি কত?
- A. x/2
- B. y
- C. 2xy - x
- D. x(y - 1)
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98 . x+y+z = 7 এবং xy + yz + z.x = 10 হলে x2+ y2 +z2 এর মান
- A. 29
- B. 32
- C. 35
- D. 45
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99 . x-y=3 হলে x3-y3 -9xy এর মান-
- A. 27
- B. 18
- C. 9
- D. 6
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100 . xyz = 280 হলে কোনটি y এর মান হতে পারে না?
- A. 0
- B. 5
- C. 3
- D. 2
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101 . What environmental issue involves the excessive use of fertilizers and run-off chemimls into bodies of water. causing oxygen depletion and harm to aquatic ecosystems?
- A. Acid rani
- B. Eutrophication
- C. Desertification
- D. Deforestation
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102 . x-y=2 এবং xy=24 হলে, x-এর ধনাত্মক মানটি ----
- A. 3
- B. 4
- C. 5
- D. 6
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103 . x+y=12 এবং x-y=2 হলে xy--এর মান কত?
- A. 40
- B. 60
- C. 80
- D. 20
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104 . x + y = 6 হলে, xy এর বৃহত্তর মান কত?
- A. 9
- B. 12
- C. 10
- D. 14
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105 . 13x+5>14+3x+xy+y
- A. 54
- B. 15
- C. 74
- D. 85
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106 . x2y+xy2 এবং x2+xy রাশিদ্বয়ের ল.সা.গু এবং গ.সা.গু এর গুণফল কত?
- A.
- B.
- C.
- D.
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107 . যদি x = -3 এবং y = 2 হয় তবে xy2 = কত?
- A. 6
- B. 20
- C. -18
- D. -12
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108 . x2+y2+z2=2, xy+yz+zx=1
- A. 12
- B. 19
- C. 16
- D. 14
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109 . x + y = 4 এবং x - y = 3 হলে 8xy = কত?
- A. 3
- B. 7
- C. 14
- D. 17
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110 . x2 + 2xy এর সাথে কত যোগ করলে যোগফল একটি পূর্ণ বর্গ সংখ্যা হবে?
- A. x
- B. y
- C. 2xy
- D. -2xy
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111 . xy
- A.
- B.
- C.
- D.
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112 . x3+6x2y+11xy2+6y3
- A.
- B.
- C.
- D.
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113 . xy
- A.
- B.
- C.
- D.
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114 . x3+x2y,x2y+xy2
- A.
- B.
- C.
- D.
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115 . xy
- A.
- B.
- C.
- D.
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116 . xy
- A.
- B.
- C.
- D.
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117 . x=15, y=5 হলে x3-3x2y+3xy2-y3=?
- A. 800
- B. 1200
- C. 1400
- D. 1000
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118 . x2-y2,x2+xy+y2,x3-y3
- A.
- B.
- C.
- D.
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119 . x2+y2+z2=4,x+y-z=8
- A.
- B.
- C.
- D.
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120 . x-y2=14
- A. 12
- B. 14
- C. 16
- D. 18
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121 . x+y=6
- A. 4
- B. 6
- C. 8
- D. 12
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122 . xy
- A.
- B.
- C.
- D.
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123 . x2+y2=8
- A. 14
- B. 16
- C. 22
- D. 30
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124 . a = ৮, b = ৬, x = ১/২, y = ৪ হলে ax + 2b - 2xy এর মান কত?
- A. ১২
- B. ৯
- C. ৭
- D. ৬
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125 . Oxygen can be mixed with___gasses such as Hydrogen and Nitrogen.
- A. another like
- B. another
- C. the other
- D. other
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126 . 16x2-xy+25
- A. 64
- B. 40
- C. 25
- D. 36
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127 . x+y=7
- A. 6
- B. 32
- C. 4
- D. 9
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128 . x+y=6
- A. 12
- B. 7
- C. 10
- D. 9
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129 . x-y2=12
- A. 14
- B. 11
- C. 12
- D. 13
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130 . xy
- A.
- B.
- C.
- D.
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131 . x3+6x2y+11xy2+6y3
- A.
- B.
- C.
- D.
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132 . x+y=6
- A. 8
- B. 6
- C. 4
- D. 12
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133 . xy
- A.
- B.
- C.
- D.
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134 . x+y=17
- A. 49
- B. 8
- C. 9
- D. 10
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135 . x2+y2=8
- A. 14
- B. 16
- C. 22
- D. 24
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136 . x+2y=4
- A.
- B.
- C.
- D.
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137 . x2+y2=8
- A. 14
- B. 16
- C. 22
- D. 30
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138 . x+y= 7
- A. 3
- B. 6
- C. 9
- D. 12
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139 . x2+y2=18
- A. 4
- B. 6
- C. 8
- D. 12
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140 . x+y=3
- A.
- B.
- C.
- D.
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141 . a=8,b=6,x=12
- A. 12
- B. 9
- C. 7
- D. 6
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142 . x+y=5, xy=6
- A. 30
- B. 35
- C. 215
- D. 230
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143 . 2x2-xy-6y2
- A.
- B.
- C.
- D.
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144 . x2-10xy-112
- A.
- B.
- C.
- D.
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145 . If ax=b, by=c and cz=a, then the value of xyz is
- A. 2
- B. 1
- C. abc
- D. 1/abc
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146 . u=x3+y3+z3+3xyzxdudx+ydudy+zdudz=?
- A.
- B.
- C.
- D.
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147 . x2-4xy+y2+8x-2y-5=0
- A. Parabola
- B. Ellipse
- C. circle
- D. hyperola
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148 . 3x=9y,5x+y+1=25xy
- A. (0,-1), 11/23
- B. (2,1),
- C. (1/2 1/3), (-2,-1)
- D. (2,1),
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149 . If, x - y =5, xy = 6. then x + y = ?
- A. 7
- B. -7
- C. 1
- D. None
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150 . x+y = 17 এবং xy = 60 হলে x - y = কত?
- A. 7
- B. 8
- C. 9
- D. 10
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151 . xy = 240 হলে কোনটি y এর মান হতে পারে না?
- A. 0
- B. 5
- C. 3
- D. 2
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152 . x+y=6 এবং x-y =4 হলে, xy এর মান কত?
- A. 5
- B. 4
- C. 6
- D. 3
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153 . If w, x, y and z are integers such that 1 ≤x≤y≤z and wxyz = 924, then how many possible values exist for z ?
- A. 4
- B. 5
- C. 6
- D. 7
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154 . যদি xy < 0, xz > 0 and z < 0 হয়, তবে নিচের কোনটি অবশ্যই সত্য হবে?
- A. y > 0
- B. Y < 0
- C. yz > 0
- D. কোনোটিই নয়
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155 . ত্রিভুজ ABC এর ক্ষেত্রফল ২০ বর্গ একর। X এবং YAB এবং AC এর মধ্যবিন্দু। ত্রিভুজ AXY সমান কত বর্গ একর?
- A. ৫ বর্গ একর
- B. ২ বর্গ একর
- C. ৪ বর্গ একর
- D. ১০ বর্গ একর
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156 . x-y=2 এবং xy=3 হলে x+y এর মান কত?
- A. ৪
- B. -৪
- C. ১৬
- D. +৪,-৪
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157 . 5xy+28x-2=0 এবং y=-4 হলে, 4x+y= কত?
- A. 3
- B. 4
- C. -3
- D. 6
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158 . If x=y=2z and xyz= 256, then x = ?
- A. 2
- B. 4
- C. 8
- D. None of these
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159 . Most of the oxy-acetylene welding is done with
- A. oxidizing flame
- B. neutral flame
- C. carburizing flame
- D. all of these
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160 . x-y2
- A. 8
- B. 6
- C. 4
- D. 12
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161 . x-y=10,xy=5
- A. 80
- B. 120
- C. 110
- D. 90
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162 . x-y=4
- A. –64
- B. +-64
- C. 64
- D. 128
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163 . x2+y2=25
- A. 6
- B. 7
- C. 8
- D. 9
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164 . x+y=12 ও x-y=2 হলে xy এর মান কত?
- A. 25
- B. 30
- C. 35
- D. 45
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165 . x+y=12
- A. 7
- B. 8
- C. 9
- D. 10
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166 . x-y=10
- A. 20
- B. 30
- C. 40
- D. 50
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167 . x+y=8,xy==15
- A. 4
- B. 8
- C. 9
- D. 16
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168 . x2+y2=8
- A. ১৪
- B. ১৬
- C. ২২
- D. ৩০
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169 . X3+x2y,x2y+xy2
- A. xy
- B. x + y
- C. xy (x + y)
- D.
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170 . x-y=1, xy=56 হলে x+y= কত?
- A. ১৬
- B. ১৫
- C. ২২৫
- D. ২২১
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171 . x3-2x2,x2-4
- A. (x + 2)
- B. (x - 2 )
- C. (x + 4 )
- D. x (x - 2 )
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172 . x2-y2,x2+xy+y2,x3-y3
- A.
- B.
- C.
- D.
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173 . 3x=9y,5x+y+1=25xy
- A. (0,-1), 11/23
- B. (2,1),
- C. (1/2 1/3), (-2,-1)
- D. (2,1),
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174 . x+y=8,xy==15
- A. 4
- B. 8
- C. 9
- D. 16
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175 . x2+y2+z2=4,x+y-z=8
- A. -60
- B. -30
- C. 30
- D. 60
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176 . x+y2
- A. 49
- B. -29
- C. -1
- D. 0
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177 . Sunlight : photosynthesis :: Oxygen :?
- A. heart beat
- B. respirataion
- C. life
- D. blood vassel
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178 . xy=2
- A. 4
- B. 5
- C. 6
- D. 7
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179 . 16x2-56xy+49y2
- A. 204
- B. 1156
- C. 36
- D. 6
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180 . x-y4=?
- A. 4
- B. 8
- C. 9
- D. 16
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181 . xy+yx=6
- A. 30
- B. 32
- C. 34
- D. 36
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182 . x2+y2+x2=5,x+y+z=3
- A. -5
- B. -4
- C. -3
- D. -2
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183 . xy = 1 সমীকরণটি নির্দেশ করে একটি (The equation xy = 1 represents a)
- A. বৃত্ত (circle)
- B. পরাবৃত্ত (parabola)
- C. অধিবৃত্ত (hyperbola)
- D. উপবৃত্ত (ellipse)
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184 . x3+6x2y+11xy2+6y3
- A. (x+y)(x+3y)(x+5y)
- B. (x+y)(x+2y)(x+3y)
- C. (x+y)(x+4y)(x+3y)
- D. (x-y)(x+y)(x+2y)
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185 . ৩১ ডিসেম্বর ২০২০-এ XYZ কোম্পানির বিবিধ দেনাদার ছিল ৭৫০,০০০ টাকা। জানুয়ারি ০১, ২০২০-এ সন্দেহজনক দেনা সঞ্চিতির ক্রেডিট ব্যালেন্স ছিল ১৮,০০০ টাকা। ২০২০ সালে ৩০,০০০ টাকার অনাদায়যোগ্য দেনাদার মুছে ফেলা হয়। অতীত অভিজ্ঞতা ইঙ্গিত করে যে দেনাদারের ৩% অনাদায়যোগ্য। ২০২০ সালের জন্য অনাদায়ী দেনা কত হওয়া উচিত?
- A. ১০,৫০০ টাকা
- B. ৩০,০০০ টাকা
- C. ২২,৫০০ টাকা
- D. ৩৪,৫০০ টাকা
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186 . xy=yx,x=2yx≠0,y≠0
- A. (8,4)
- B. ( 6,3)
- C. (2,1)
- D. (4,2)
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187 . xy-40 অধিবৃত্ত, x-অক্ষ, x = 1 এবং xe রেখা দুইটি দ্বারা। সীমাবদ্ধ ক্ষেত্রের ক্ষেত্রফল কত বর্গ একক?
- A. 2
- B. 3
- C. 4
- D. 5
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188 . x2+y2=xy
- A.
- B. xy
- C.
- D.
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189 . x3+y32
- A. 16
- B. 4
- C. 8
- D. 10
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190 . X-Y2
- A. -12
- B. 12
- C. 8
- D. 10
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191 . x2+y2+z2=2,x+y+z=2
- A. 0
- B. 1
- C. 2
- D. 3
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192 . xy+2ay+3ax+6a2=?
- A. x(x+a)(y+3a)
- B. (x+7a)(y+3a)
- C. (x+5a)(y+3a)
- D. (x+2a)(y+3a)
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193 .
- A. X
- B. Y
- C. X-Y
- D.
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194 . x2+y2+b=8,xy=7
- A. ১৪
- B. ১৬
- C. ২২
- D. ৩০
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195 . x-y3=?
- A. 3
- B. 8
- C. 9
- D. 12
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196 . According to the extract, what affects the stock of oxygen?
- A. toxic gas
- B. deforestation
- C. poisonous effluent
- D. hunting animals
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197 . (x - y) = 2 এবং xy= 24 হলে (x + y) এর মান কত?
- A. 20
- B. 100
- C. 48
- D. 10
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198 . m এর কোন মানের জন্য 2xy + 7 = 0 এবং 3x + my - 5 = 0 রেখা দুটি পরস্পর লম্ব হবে?
- A. 4
- B. 6
- C. 9
- D. 10
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199 . The XYZ Corporation has 7000 employees. What is the average yearly wage of employee of the XYZ Corporation? (1) 4000 of the employees are executives. (2) The total amount the company pays wages each year is 70,000000.
- A. if you can get the answer from (1) alone but not from (2) alone.
- B. if you can get the answer from (2) alone but not from (1) alone.
- C. if you can get the answer from (1) and (2) together, but not from (1) alone or (2) alone.
- D. if statement (1) alone suffices and statement (2) alone suffices.
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200 . x2-y2=10
- A. 24.75
- B. 297
- C. 247.5
- D. 247
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201 . ২০১৮ সালে XYZ Company-এর সম্পদ হ্রাস পেল ৫০,০০০ টাকা, এবং দায় হ্রাস পেল ৯০,০০০ টাকা। তাহলে কোম্পানির Owner's equity-তে কী পরিবর্তন আসবে?
- A. ৪০,০০০ টাকা বৃদ্ধি পাবে
- B. ৪০,০০০ টাকা হ্রাস পাবে
- C. ১,৪০,০০০ টাকা হ্রাস পাবে
- D. ১,৪০,০০০ টাকা বৃদ্ধি পাবে
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202 .
- A. x-y+2=0
- B. x+y-2=0
- C. x-2y+2=0
- D. x + 2y-2=0
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203 . Carbon and oxyzen-carbon dioxide. The missing word is:
- A. compose
- B. composed of
- C. are compose
- D. is compose
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204 . xy=34
- A.
- B.
- C.
- D.
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205 . F=xy+xz+yz
- A. xy + yz
- B.
- C.
- D.
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206 .
- A.
- B.
- C.
- D.
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207 . x+y=3
- A. -12
- B. -48
- C. 42
- D. 21
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208 . x-y=10,xy=5
- A. 80
- B. 120
- C. 110
- D. 90
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209 . x-y2=12
- A. 14
- B. 11
- C. 12
- D. 13
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210 . x+y2=164
- A. 6
- B. 9
- C. 4
- D. 12
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211 . x+y=7, xy=12 হলে x-y=?
- A. 1
- B. 2
- C. 3
- D. 4
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212 . The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by
- A. TOD > BOD > COD
- B. TOD > COD > BOD
- C. BOD > COD > TOD
- D. COD > BOD > TOD
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213 . Dissolved oxygen in streams is
- A. maximum at noon
- B. minimum at noon
- C. maximum at midnight
- D. same throughout the day
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214 . If water is to oxygen then salt is to-
- A. iron
- B. sodium
- C. calcium
- D. protein
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215 .
- A.
- B.
- C.
- D.
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216 . SO2
- A. 4g
- B. 8g
- C. 16g
- D. 32g
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217 . F=3xzi^+2xyj^-yz2k^
- A. 0
- B. 3
- C. 4
- D. 7
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218 . exy+1=5
- A.
- B.
- C.
- D.
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219 . A=4235;B=61;X=xy;
- A. 2, -1
- B. 3,-1
- C. -1,3
- D. -1,1
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220 . x+y=10, x2-y2=10
- A. 24.75
- B. 297
- C. 247.5
- D. 247
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221 . ex+y=xy
- A.
- B.
- C.
- D.
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222 . x + y = 10 হলে xy এর সর্বোচ্চ মান কোনটি?
- A. 16
- B. 25
- C. 21
- D. 35
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223 .
- A.
- B.
- C.
- D.
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224 . x+y=6 xy=8 হলে (x-y)=?
- A. 3
- B. 4
- C. 5
- D. 6
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225 . xxyy=1
- A.
- B.
- C.
- D.
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226 .
- A.
- B.
- C.
- D.
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227 . k এর মান কত হলে, kxy - 8x + 9y - 12 = 0 সমীকরণটি এক জোড়া সরলরেখা নির্দেশ করবে ।
- A. 12
- B. 18
- C. 3
- D. 6
- D. 9
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228 . xy=4c² সমীকরণটি কি নির্দেশ করে ?
- A. কোনটিই না
- B. পরাবৃত্ত
- C. সরলরেখা
- D.
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229 . [x y] [ahhb] [xy] = ?
- A. null
- B. [ ax2+by2 ]
- C. [ax2 + 2hxy]
- D.
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230 . (2,1) বিন্দুতে x3−3xy+y3−3 এর ঢাল নির্ণয় করো।
- A. 3
- B. 6
- C. o
- D.
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231 . m এর কোন মানের জন্য 4x2+8xy+my2=9 একজোড়া সরলরেখার সমীকরণ হবে?
- A. x+y = ±3/2
- B. x±=9/4
- C. x+y = 0
- D.
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232 . যদি x2+3xy+5y2=1 হয়, তাহলে dy/dx সমান হবে−
- A. −2x+3y/3x+10y
- B. 2x+3y/3x+10y
- C. none
- D.
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233 . যদি x²+3xy+5y²=10 হয়, তবে dy/dx সমান-
- A. (2x+3y)/(3x+10y)
- B. (2x-3y)/(3x+10y)
- C. (2x+3y)/(3x-10y)
- D. -(2x+3y)/(3x+10y)
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234 . ABCDEFGHIJKLMNOPQ RSTUVWXYZ. Which letter in this alphabet is the eighth letter to the right of the letter and which is tenth letter to the left of the last but one letter of the alphabet?
- A. X
- B. W
- C. 1
- D. H
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235 . If 0 ≤ x ≤ 4 and y > 12 which of the following cannot be the value of xy?
- A. 48
- B. 24
- C. -2
- D. 6
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236 . কোনো একটি নমুনা পানির BOD (Biochemical Oxygen Demand ) 3 mg/L হলে নমুনা পানিটি সম্পর্কে সঠিক?
- A. খুবই ভালো
- B. মোটামুটি ভালো
- C. দূষণমাত্রা খারাপ
- D. দূষণমাত্রা খুবই খারাপ
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237 . k এর কোন মানের জন্য (xy+3)2+ (kx + 2) (y-1) = 0 সমীকরণ একটি বৃত্ত হবে?
- A. 1
- B. -1
- C. 2
- D. -2
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238 . 9x2 − 30xy + 25y2 এর উৎপাদক বিশ্লেষণ কোনটি ?
- A. ( 3 y − 5 x ) ( 3 y − 5 x )
- B. ( 5 x − 3 y ) ( 5 x + 3 y )
- C. ( 3 x − 5 y ) ( 3 x − 5 y )
- D. ( 3 x + 5 y ) ( 3 x − 5 y )
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239 . x + y = 12, x- y = 2, xy = ?
- A. ৩০
- B. ৩৫
- C. ৪০
- D. ৪৫
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240 . 2 x2 − 4 xy + 3y2 − x + y − 1 = 0 সমীকরণের জ্যামিতিক রূপ কোনটি?
- A. বৃত্ত
- B. পরাবৃত্ত
- C. উপবৃত্ত
- D. অধিবৃত্ত
- D. জোড়া সরলরেখা
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