5986 . What is the difference between the 6 digit largest and the smallest numbers?

A. 888889
B. 899999
C. 999888
D. 988888

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Answer: Option B

Explanation:

বিসিআইসি | সহকারী প্রকৌশলী (কমার্শিয়াল) | 10-12-2021

A. 9
B. 10
C. 11
D. 12

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Answer: Option C

Explanation:

C ইউনিট ব্যবসা শিক্ষা (২০২৩-২০২৪) || (09-03-2024) || চট্টগ্রাম বিশ্ববিদ্যালয়

A. 39
B. 40
C. 41
D. 42

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Answer: Option C

Explanation:

1 + 5 + 9 . . . . . + 81 ধারাটির n তম পদ=a+ (n - 1) d \Rightarrow 81 = 1 + (n - 1) 4 \Rightarrow 81 = 1 + 4 n - 4 \Rightarrow 81 + 3 = 4 n \Rightarrow 4 n = 84 ∴ n = 21 ∴ সমষ্টি = \frac{21}{2} \{2.1 + (21 - 1) 4\} = \frac{21}{2} (2 + 80) = \frac{21}{2} ×82 =21×41=861 সুতরাং গড়= \frac{861}{21} =41

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

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

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Answer: Option B

Explanation:

Bangladesh Oil- Gas and Mineral Corporation (Petrobangla) || Assistant Manager (Electrical / Electronics/Chemical/Petroleum/Petroleum & Mining/IPE/ MME/Naval Architechture/ Telecom/ Geology/Geophysics/Chemistry/Environment/Marketing) (31-05-2024) || 2024

A. 480
B. 24
C. 48
D. 30
E. None of these

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Answer: Option B

Explanation:

To find the area of a triangle when you know the lengths of its sides (a, b, and c), you can use Heron's formula. Heron's formula states that the area (A) of a triangle with sides of length a, b, and c is given by:

A = √[s(s - a)(s - b)(s - c)]

where s is the semiperimeter of the triangle, calculated as:

s = (a + b + c) / 2

In this case, the lengths of the sides are a = 10 feet, b = 6 feet, and c = 8 feet.

First, calculate the semiperimeter (s):

s = (10 + 6 + 8) / 2 s = 12 feet

Now, use Heron's formula to find the area (A):

A = √[12(12 - 10)(12 - 6)(12 - 8)] A = √[12(2)(6)(4)] A = √[12 * 2 * 6 * 4] A = √[576] A = 24

So, the area of the triangle is 24 square feet.

বাংলাদেশ গ্যাস ফিল্ড | সহকারী-ব্যবস্থাপক | 03-12-2021 || 2021

A. 30°
B. 60°
C. 90°
D. 120°

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Answer: Option B

Explanation:

ওয়েজ আর্নার্স কল্যাণ বোর্ড || সহকারী পরিচালক (22-11-2024) || 2024

A. 21
B. 0.21
C. 0.021
D. 0.0021

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Answer: Option D

Explanation:

পল্লী বিদ্যুতায়ন বোর্ড। এসিস্ট্যান্ট এনফোর্সমেন্ট কোঅডিনেটর। 31-12-2021

5993 . What will be the result if $\frac{4 x + 20}{4}$ is subtracted from $(x + 10) ?$ ..

A. 5
B. $x$
C. $\frac{x}{2}$
D. $2 - x$

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Answer: Option A

Explanation:

5994 . What number should be divided by $\sqrt{0.25}$ to give the result as 25? ..

A. 12.5
B. 2.5
C. 50
D. 125

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Answer: Option A

Explanation:

5995 . What is the value of a If $3 x^{2} + a x + a + 3 d i v i s i b l e x + 2 ?$ ..

A. 12
B. 13
C. 14
D. 15

View Answer	Favorite Question

Answer: Option D

Explanation:

ধরি, f(x) = 3x² + ax + a + 3
f(x), x + 2 দ্বারা বিভাজ্য সেহেতু
f( - 2) = 0 হবে
⇒ 3( - 2)² + a( - 2) + a + 3 = 0
⇒12 - 2a + a + 3 = 0
⇒ - a + 15 = 0
⇒a = 15.

5996 . What is the value of a If $3 x^{2} + a x + a + 3$ divisible $x + 2$ ..

A. 12
B. 13
C. 14
D. 15

View Answer	Favorite Question

Answer: Option D

Explanation:

5997. What is the number of straight lines and the number of triangles in the given figure.

A. 10 straight lines and 34 triangles
B. 9 straight lines and 34 triangles
C. 9 straight lines and 36 triangles
D. 10 straight lines and 36 triangles

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Answer: Option C

Explanation:

আশুগঞ্জ পাওয়ার স্টেশন কোম্পানী লিঃ (APSCL) || সহকারী প্রকৌশলী (মেকানিক্যাল ও ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স) (27-09-2024) || 2024

5998 . What is the greatest prime factor of ${(2^{4})}^{2} - 1 ?$ ..

A. 3
B. 5
C. 11
D. 17

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Answer: Option D

Explanation:

(2^{4}) - 1 (2^{4} + 1) (2^{4} - 1) [a^{2} - b^{2} = (a + b) (a - b)] = (16 - 1) (16 - 1) = 1715 = 17 \times 5 \times 3 . : . সর্বোচ্চ মৌলিক সংখ্যা = 17

5999 . What is factor of $x^{3} - 3 x^{2} + 4 x - 4 ?$ ..

A. $(x - 2) (x^{2} - x + 2)$
B. $(x - 2) (x^{2} + x - 2)$
C. $(x - 2) (2 x^{2} - x + 4)$
D. $(x^{2} - 2) (x + 2 x + 4)$

View Answer	Favorite Question

Answer: Option A

Explanation:

6000 . w,x অপেক্ষা 10% কম হলে এবং y,z d অপেক্ষা 30% কম হলে wy, xz অপেক্ষা শতকরা কত কম ?

A. 10%
B. 20%
C. 37%
D. 40%

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Answer: Option C

Explanation:

দুর্যোগ ও ত্রাণ মন্ত্রণালয় অডিটর ২২. ০৩. ২০১৯

5986 . What is the difference between the 6 digit largest and the smallest numbers?

5987 . What is the difference between 300% of 7 and 200% of 5?

5988 . what is the avareage of series 1,5,9,---,81 ?

5989 . What is the area under the curve y = x ^ 2 from x = 0 to x =1?

5990 . What is the area in square feet of the triangle whosw sides have lengths equal to 10.6 8 feet respectively?

5991 . What is the angle between any two sides of an equilateral triangle?

5992 . What is 3% of 0.07?

6000 . w,x অপেক্ষা 10% কম হলে এবং y,z d অপেক্ষা 30% কম হলে wy, xz অপেক্ষা শতকরা কত কম ?

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