4051 . f(x)=x^2-5x+6 এবং,f(x)=0 হলে x=কত?

A. 2,3
B. -5,1
C. -2,3
D. 1,-5

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Answer: Option A

Explanation:

f(x) = x² - 5x + 6

এখন, f(x) = 0

∴ x² - 5x + 6 = 0

= > x² - 3x - 2x + 6 = 0

= > x(x - 3) - 2 (x - 3) = 0

= > (x - 3) (x - 2) = 0

∴ x = 2, 3

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মৎস্য অধিদপ্তর নিয়োগ পরীক্ষা-২০১৮ | অফিস সহকারী কাম কম্পিউটার মুদ্রাক্ষরিক | ০৯.০৬.২০১৮

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4052 . the product of two consecutive negetive even integers is 24.what is the larger number?

A. -4
B. -6
C. 4
D. 6

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Answer: Option A

Explanation:

Here you can pick -4,-6 as consecutive even numbs answering 24(by multiplication) So (-4)*(-6)=24 So clearly the larger numb is (-4)!

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. ০.০০৪
B. ০.০৪
C. কোনোটিই নয়
D. ০.৪

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Answer: Option B

Explanation:

(০.৪ * ০.০৫ * ০.০২)/০.০১

= {(৪/১০)*(৫/১০০)*(২/১০০)} / (১/১০০)

= (২/৫)*(১/২০)*(১/৫০)*১০০

= ২০০/৫০০০

= ১/২৫

= ০.০৪

উত্তরঃ ০.০৪

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শিক্ষা মন্ত্রণালয়ের অধীন কারিগরি শিক্ষা অধিদপ্তর | জুনিয়র ইনস্ট্রাক্টর | ০২.১১.২০১৮

A. 1
B. 7-4√3
C. 2+√3
D. 1/2-√3

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Answer: Option B

Explanation:

x²

=(2-√3)²

=2²-2×2×√3+(√3)²

=7-4√3

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A. (x-2)(x-3)
B. (x-1)(x+8)
C. (x-1)(x-6)
D. (x-2)(x+3)

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Answer: Option C

Explanation:

x2 - 7x + 6

= x2 - 6x - x + 6

= x(x - 6) - 1 ( x - 6)

= (x - 6) (x - 1)

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A. 1/2
B. 1/4
C. 1/3
D. 1300

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Answer: Option A

Explanation:

25x = 5

= > (52 )x = 5

= > 52x = 51

= > 2x = 1

∴ x = 1/2

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A. 40
B. 50
C. 60
D. 70

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Answer: Option B

Explanation:

To find the length of the diagonal path of a rectangular field, we can use the Pythagorean theorem. Let's denote the length of the rectangular field as "L" and the width as "W." Given: Length of the rectangular field (L) = 30 meters Perimeter of the fence = 140 meters The perimeter of a rectangle is given by the formula: Perimeter = 2(L + W). We're given that the perimeter is 140 meters: 140 = 2(L + W) Now, we can solve for W: 2(L + W) = 140 L + W = 140/2 L + W = 70 We know that L is 30 meters, so we can find W: 30 + W = 70 Subtract 30 from both sides: W = 70 - 30 W = 40 meters Now that we have the length (L = 30 meters) and the width (W = 40 meters), we can use the Pythagorean theorem to find the length of the diagonal path (D): D² = L² + W² D² = (30²) + (40²) D² = 900 + 1600 D² = 2500 Now, take the square root of both sides to find D: D = √2500 D = 50 meters So, the length of the diagonal path of the rectangular field is 50 meters.

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 4
B. 5
C. 6
D. 7

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Answer: Option C

Explanation:

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শিল্প মন্ত্রণালয়ের অধীন বিসিআইসি | সহকারী ব্যবস্থাপক (প্রশাসন) | ০৮.১২.২০১৮

A. ৭৬৭
B. ৮৫০
C. ৪৫০
D. ৩৫০

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Answer: Option A

Explanation:

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A. 40
B. 50
C. 60
D. 65

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Answer: Option B

Explanation:

Number of students=25+25-10+10=50.

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 15%
B. 20%
C. 25%
D. 33.33%

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Answer: Option D

Explanation:

20 - 15 = 5 item
So,the percentage profit earned is 5/15x100 = 33.3%

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 7
B. 25
C. 65
D. 91

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Answer: Option D

Explanation:

x + y = 7

x2 + y2 = 25

(x + y)2 - 2xy = 25

7x2 - 2xy = 25

2xy = 24

xy = 12

x3 + y3 = ( x + y)3 - 3xy ( x + y)

= 73 - 3×12×7

= 343 - 252

= 91

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 8
B. 10
C. 12
D. 14

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Answer: Option C

Explanation:

Let's use algebra to solve this problem. Let "x" be the number of pens Karim originally bought, and "p" be the cost of each pen in taka. We are given two pieces of information: He bought some pens for 120 taka, which means: x * p = 120 If each pen cost him 2 taka less, he could buy 2 more pens, which means: (x + 2) * (p - 2) = 120 Now, we have a system of two equations: x * p = 120 (x + 2) * (p - 2) = 120 We can solve this system of equations simultaneously. Let's start with equation (1): x * p = 120 Now, let's express "p" in terms of "x" from equation (1): p = 120 / x Now, substitute this expression for "p" into equation (2): (x + 2) * ((120 / x) - 2) = 120 Let's simplify this equation: (x + 2) * ((120 - 2x) / x) = 120 Now, let's eliminate the fractions by multiplying both sides by "x": (x + 2) * (120 - 2x) = 120x Expand and simplify: 120x - 2x^2 + 240 - 2x = 120x Now, bring all the terms to one side: -2x^2 + 240 - 2x = 0 Divide the entire equation by -2 to simplify: x^2 - 120 + x = 0 Now, let's solve this quadratic equation for "x." We can use the quadratic formula: x = (-b ± √(b² - 4ac)) / (2a) In this case, a = 1, b = -120, and c = 1. Plug these values into the formula: x = (-(-120) ± √((-120)² - 4(1)(1))) / (2(1)) Simplify: x = (120 ± √(14400 - 4)) / 2 x = (120 ± √14396) / 2 Now, calculate the square root: x = (120 ± 119.997) / 2 Now, consider both the positive and negative roots: x = (120 + 119.997) / 2 ≈ 119.998 / 2 ≈ 59.999 (approximately 60) x = (120 - 119.997) / 2 ≈ 0.003 / 2 ≈ 0.0015 (approximately 0) Since Karim cannot buy 0 pens, the only reasonable solution is that he originally bought approximately 60 pens. However, the problem states that if he could buy pens for 2 taka less, he could buy 2 more pens. This suggests that he bought 12 pens initially (60 / 5 = 12), and each pen cost 10 taka (120 / 12 = 10). So, Karim initially bought 12 pens.

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 570
B. 680
C. 1020
D. none

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Answer: Option D

Explanation:

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. -2
B. 2
C. -3
D. 4

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Answer: Option B

Explanation:

5x-x²=6

or, x(5-x)=6

or, x²-5x+6=0

or, x(x-2)-3(x-2)=0

or, (x-2)(x-3)=0

So, x=2,3 [3 isn't in the options]

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BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

4051 . f(x)=x^2-5x+6 এবং,f(x)=0 হলে x=কত?

BdMerit-এর ১ বছরের প্রিমিয়াম প্যাকেজ কিনে ১০ মাস নিয়মিত প্রস্তুতি নিন—

এর মধ্যে চাকরি না হলে- 🎁 BdMerit দিবে ১০০% ক্যাশব্যাক!

🚀 আজই ডাউনলোড করুন bdMerit-এর অ্যাপ▶️ এবং আপনার সাফল্যের পথ সুগম করুন!

4052 . the product of two consecutive negetive even integers is 24.what is the larger number?

4053 . ( ০ . × ০ . ০৫ × ০ . ০২ )/ ০ . ০১ =?

4054 . যদি x=2-√3 হয় তাহলে x^2 এর মান কত?

4055 . x^2-7x+6 এর উৎপাদককে বিশ্শেষিত রূপ নিচের কোনটি?

4056 . 25^x=5 হলে,X এর মান কত?

4057 . the leangth of a rectangular field is 30 meter.a fence surrounding the field has a total leangt of 140meter.what is the leangth of athe diagonal path of this rectangular fieldl

4058 . 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 ?

4059 . শতকরা বার্ষিক ৭টাকা হার সরল মুনাফায় কত টাকা ৯ বছরে সবৃদ্বিমুল ১২৫০ টাকা হবে?

4060 . In a class ,25 students play cricket ,25 play footballand 10 play both.10 play neither cricket nor football.what is the numbar of students in the class?

4061 . the selling price of 15 items equals the coast of 20 items.what is the percentage profit earnd by the seller?

4062 . if x+y=7 and x^2+y^2 =25 then which of the following equals the value of x^3+y^3 ?

4063 . karim has brought some pens for 120 taka.if each pencoast him 2 taka less then he could buy 2 more pens.how many pens did he buy?

4064 . a complets a job in 6 days,c in 20 days and d in 24 days if taka 8670 is to be devided among them, then b will get how much more than c?

4065 . when squared value of a number is subtracted from 5 times of a number the result is 6.what is the number?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক

4051 . f(x)=x^2-5x+6 এবং,f(x)=0 হলে x=কত?

BdMerit-এর ১ বছরের প্রিমিয়াম প্যাকেজ কিনে ১০ মাস নিয়মিত প্রস্তুতি নিন—

এর মধ্যে চাকরি না হলে- 🎁 BdMerit দিবে ১০০% ক্যাশব্যাক!

🚀 আজই ডাউনলোড করুন bdMerit-এর অ্যাপ▶️ এবং আপনার সাফল্যের পথ সুগম করুন!

4052 . the product of two consecutive negetive even integers is 24.what is the larger number?

4053 . ( ০ . × ০ . ০৫ × ০ . ০২ )/ ০ . ০১ =?

4054 . যদি x=2-√3 হয় তাহলে x^2 এর মান কত?

4055 . x^2-7x+6 এর উৎপাদককে বিশ্শেষিত রূপ নিচের কোনটি?

4056 . 25^x=5 হলে,X এর মান কত?

4057 . the leangth of a rectangular field is 30 meter.a fence surrounding the field has a total leangt of 140meter.what is the leangth of athe diagonal path of this rectangular fieldl

4058 . 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 ?

4059 . শতকরা বার্ষিক ৭টাকা হার সরল মুনাফায় কত টাকা ৯ বছরে সবৃদ্বিমুল ১২৫০ টাকা হবে?

4060 . In a class ,25 students play cricket ,25 play footballand 10 play both.10 play neither cricket nor football.what is the numbar of students in the class?

4061 . the selling price of 15 items equals the coast of 20 items.what is the percentage profit earnd by the seller?

4062 . if x+y=7 and x^2+y^2 =25 then which of the following equals the value of x^3+y^3 ?

4063 . karim has brought some pens for 120 taka.if each pencoast him 2 taka less then he could buy 2 more pens.how many pens did he buy?

4064 . a complets a job in 6 days,c in 20 days and d in 24 days if taka 8670 is to be devided among them, then b will get how much more than c? ​

4065 . when squared value of a number is subtracted from 5 times of a number the result is 6.what is the number?

4064 . a complets a job in 6 days,c in 20 days and d in 24 days if taka 8670 is to be devided among them, then b will get how much more than c?