• A. 18 years
• B. 17 years
• C. 16 years
• D. None of these

Answer: Option A

Explanation:

• A. $\left(x-a-1\right)\left(x-a+2\right)$
• B. $\left(x+a+1\right)\left(x-a-2\right)$
• C. $\left(x-a+1\right)\left(x+a-2\right)$
• D. $\left(x-a-1\right)\left(x+a+2\right)$

Answer: Option D

Explanation:

• A. $150°$
• B. $135°$
• C. $90°$
• D. $120°$

Answer: Option D

Explanation:

• A. $12°$
• B. $78°$
• C. $282°$
• D. $102°$

Answer: Option D

Explanation:

• A. (x+3)(2x-5)
• B. (x-3)(2x+5)
• C. (x+3)(2x+5)
• D. (x-3)(2x-5)

Answer: Option A

Explanation:

• A. $x-y-1$
• B. $x+y-1$
• C. $x-y+1$
• D. $x+2y+1$

Answer: Option A

Explanation:

• A. ৬
• B. ৯
• C. ১০
• D. ১২

Answer: Option C

Explanation:

• A. 5
• B. 30
• C. 20
• D. 25
• E. 10

Answer: Option E

Explanation:

• A. (3x+4)(3x+10 )
• B. (3x+4)(3x-10)
• C. (3x-4)(3x+10)
• D. (3x-4)(3x-10)

Answer: Option C

Explanation:

• A. ৫ বছর
• B. ৬ বছর
• C. ৬ ১/২ বছর
• D. ৫ ১/২ বছর

Answer: Option B

Explanation:

• A. (x-a+b)(x+a-b)
• B. (x-a-b)(x-a+b)
• C. (x+a-b)(x-a-b)
• D. (x+a+b)(x-a-b)

Answer: Option B

Explanation:

• A. 8
• B. 12
• C. 14
• D. 16
• E. 24

Answer: Option C

Explanation:

• A. ১০ টাকা
• B. ২০ টাকা
• C. ১৫ টাকা
• D. ৫ টাকা

Answer: Option D

Explanation:

• A. $\left(x+4\right)\left(x+3\right)$
• B. $\left(x-4\right)\left(x-3\right)$
• C. $\left(x-4\right)\left(x+3\right)$
• D. $\left(x=4\right)\left(x+3\right)$

Answer: Option B

Explanation:

• A. $\left(x+1\right)\left(x-2\right)\left(x-3\right)$
• B. $\left(x-1\right)\left(x-2\right)\left(x+3\right)$
• C. $\left(x-11\right)\left(x+2\right)\left(x+3\right)$
• D. $\left(x-1\right)\left(x-2\right)\left(x-3\right)$

Answer: Option D

Explanation: