• A. 45 years
• B. 55 years
• C. 65 years
• D. 75 years
• E. 85 years

Answer: Option B

Explanation:

• B. 2
• C. 3
• D. -3

Answer: Option C

Explanation:

• A. ৪৭
• B. ৩৬
• C. ২৫
• D. ১৪

Answer: Option C

Explanation:

• A. x=1, y= -1
• B. x=1, y= 1
• C. x=-1, y= -1
• D. x=-1, y= 1

Answer: Option D

Explanation:

• A. বাস্তব ও সমান
• B. বাস্তব ও অসমান
• C. অবাস্তব
• D. পূর্ণ বর্গ সংখ্যা

Answer: Option B

Explanation:

• A. $3,4$
• B. $3,-4$
• C. $-3,4$
• D. $-3,-4$

Answer: Option C

Explanation:

• A. $1$
• B. $2$
• C. $3$
• D. কোনটিই নয়

Answer: Option A

Explanation:

• A. $\frac{\left(a+b\right)}{2}$
• B. $2x+y$
• C. $\frac{a^2-b^2}{2}$
• D. $\frac{a-b}{x-y}$

Answer: Option C

Explanation:

• A. $a+b$
• B. $\frac{ab}{a+b}$
• C. $ab$
• D. $\frac{a+b}{ab}$

Answer: Option B

Explanation:

• A. $p+q$
• B. $\frac{pq}{p+q}$
• C. $pq$
• D. $\frac{p+q}{pq}$

Answer: Option B

Explanation:

• A. $-\frac{1}{3}$
• B. $3$
• C. $-3$
• D. $\frac{2}{3}$

Answer: Option C

Explanation:

• A. $-15$
• B. $14$
• C. $-14$
• D. $15$

Answer: Option D

Explanation:

• A. 5
• B. 3
• C. -2
• D. -3

Answer: Option B

Explanation:

• A. $b^2-4ac=0$
• B. $b^2-4ac>0$
• C. $b^2-4ac<0$
• D. $b^2-4ac\#0$

Answer: Option A

Explanation:

• A. 2
• B. 3
• C. 4
• D. 1

Answer: Option B

Explanation: