• B. 3
• C. সবগুলোই
• D. -4

Answer: Option C

Explanation:

• A. $y : \frac{1}{x}$
• B. $\sqrt{y} : \frac{1}{\sqrt{x}}$
• C. $\frac{1}{x} : \frac{1}{y}$
• D. $x : y$

Answer: Option D

Explanation:

• A. 5 : 6 : 8
• B. 35 : 42 : 40
• C. 35 : 42 : 48
• D. 40 : 42 : 48

Answer: Option C

Explanation:

• A. 9 : 10
• B. 8 : 10
• C. 10 : 9
• D. 9 : 11

Answer: Option A

Explanation:

• A. 3
• B. 5
• C. -6
• D. 7

Answer: Option D

Explanation:

• A. 1
• B. কোনটিই নয়
• C. 10
• D. 100

Answer: Option D

Explanation:

• A. -2xy
• B. 8xy
• C. 6xy
• D. 2xy

Answer: Option D

Explanation:

• A. -5
• B. -2
• C. 2
• D. 5

Answer: Option B

Explanation:

• A. (i),(ii)
• B. (i),(iii)
• C. (ii),(iii)
• D. (i),(ii),(iii)

Answer: Option C

Explanation:

• A. (7,4)
• B. (9,6)
• C. (10,7)
• D. (11,8)

Answer: Option D

Explanation:

• A. 16
• B. ± 16
• C. 4
• D. ± 64

Answer: Option B

Explanation:

• A. 246
• B. 286
• C. 322
• D. 354

Answer: Option C

Explanation:

• A. 2x+1
• B. 2(x+1)
• C. 2x-1
• D. x-2

Answer: Option B

Explanation:

• A. 10
• B. ± 8
• C. ± 10
• D. ± 6

Answer: Option C

Explanation:

• A. 21
• B. 27
• C. 28
• D. 29

Answer: Option B

Explanation: