6256 . If y= kx, where k is a constant , and y= 24 when x=6, what is the value of y when x =5 ?

A. 6
B. 15
C. 20
D. 23

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Answer: Option D

Explanation:

পল্লী কর্ম সহায়ক ফাউন্ডেশন সহকারী ব্যবস্থাপক ০২. ০৮.২০১৯

A. 36
B. 28
C. 42
D. 34

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Answer: Option D

Explanation:

পায়রা বন্দর কর্তৃপক্ষ (বিভিন্ন পদ) 09-10-2020

6258 . If x=ya,y=zb and $z = x^{c}$ then abc = ? ..

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

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Answer: Option A

Explanation:

6259 . If $(x^{5} - 32) = 0$ and $x^{7} = 128,$ then, ..

A. X<0
B. X=2
C. X>3
D. X=5

View Answer	Favorite Question

Answer: Option B

Explanation:

6260 . If $x^{3} = 729$ then what is x? ..

A. 9
B. 7
C. 6
D. 16

View Answer	Favorite Question

Answer: Option A

Explanation:

6261 . If $(x^{2} - 8 x + 22) = 6$ Which of the following must be false? ..

A. x=4
B. x=-4
C. x>3
D. x>0

View Answer	Favorite Question

Answer: Option D

Explanation:

6262 . If $(x^{2} - 4 x + 9) = 6,$ which of the following must be false? ..

A. x=1
B. x=3
C. x>3
D. x>0

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Answer: Option C

Explanation:

6263 . If $x^{2} - 4 x + 3 e q u a l s 0, t h e n w h a t i s t h e v a l u e o f {(x - 2)}^{2}$ ..

A. 3
B. 2
C. 1

View Answer	Favorite Question

Answer: Option C

Explanation:

6264 . If $x^{2} + 4 x + 3$ is odd, then which one of the following could be the value of x? ..

A. 9
B. 11
C. 12
D. 16

View Answer	Favorite Question

Answer: Option D

Explanation:

6265 . If $x^{2} + 4 x + 13 = 1 + x^{2}$ then find out the value of $x^{2}$ ..

A. 9
C. 4
D. 7

View Answer	Favorite Question

Answer: Option A

Explanation:

6266 . If x/z is 1 more than y/z, then y =?

A. x - z
B. zx - 1
C. x - 1
D. (x - 1)/z

View Answer	Favorite Question

Answer: Option A

Explanation:

গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক | ২০.০৪.২০১৮

A. 2 - x
B. x/2
C. 2/x
D. (2 - x)(2 + x)

View Answer	Favorite Question

Answer: Option A

Explanation:

এখানে বলা হয়েছে x = 10 হলে অপশন গুলার মধ্যে কোনটায় সর্বনিম্ন মান হবে...

এখন, x এর মান আমরা সবগুলায় বসায়ে দেখি,

1. 2 - x = 2 - 10 = - 8

2. x/2 = 10/2 = 5

3.2/x = 2/10 = 0.2

4. (2 - x) (2 - x) = (2 - 10)(2 - 10) = ( - 8) ( - 8) = 64

এখানে সর্বনিম্ন মান হচ্ছে (2 - x) এটাই সঠিক উত্তর

6268 . if x+y=7 and x^2+y^2 =25 then which of the following equals the value of x^3+y^3 ?

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

View Answer	Favorite Question

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

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

6269 . If $x + y = 7$ and $x^{2} + y^{2} = 25,$ then which one of the following equals the value of $x^{3} + y^{3} ?$ ..

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

View Answer	Favorite Question

Answer: Option D

Explanation:

দেওয়া আছে, x + y = 7 x^{2} + y^{2} = 25 \Rightarrow {(x + y)}^{2} - 2 x y = 25 \Rightarrow 7^{2} - 25 = 2 x y \Rightarrow 2 x y = 49 - 25 \Rightarrow x y = \frac{24}{2} = 12 x^{3} + y^{3} = {(x + y)}^{3} - 3 x y (x + y) = 7^{3} - 3 \times 12 \times 7 = 343 - 252 = 91

6270 . If w is 10 percent less than x, and y is 30 percent less than z , then why is what percent less than xz?

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

View Answer	Favorite Question

Answer: Option C

Explanation:

ধরি, x = 100

then, w = 100 - 100× 10/100 = 9আবার, If z = 100

then, y = 100 - 100 × 30/100 = 70

সুতরাং, wy = 90 × 70 = 6300

and xz = 100 × 100 = 10000

Difference = 10000 - 6300 = 3700

Difference in percentage = 3700/10000 × 100% = 37%

বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ড ।। সহকারী সচিব/সহকারী পরিচালক(প্রশাসন) (18-01-2019)

6256 . If y= kx, where k is a constant , and y= 24 when x=6, what is the value of y when x =5 ?

6257 . If y = 5x +3 and 5x + 2 = 33 then, y = ?3

6266 . If x/z is 1 more than y/z, then y =?

6267 . If x = 10, which of the following has the minimum value?/x = 10 হলে নিচের কোনটির মান সর্বনিম্ন?

6268 . if x+y=7 and x^2+y^2 =25 then which of the following equals the value of x^3+y^3 ?

6270 . If w is 10 percent less than x, and y is 30 percent less than z , then why is what percent less than xz?

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