• A. 25
• B. 15
• C. 5
• D. 10

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. $2$
• B. $\pm 2$
• C. $4$
• D. $10$

Answer: Option A

Explanation:

• A. ৩৪
• B. ৫৫
• C. ২১
• D. ১৩

Answer: Option B

Explanation:

• A. $32$
• B. $8$
• C. $3$
• D. $\sqrt{8}$

Answer: Option A

Explanation:

• A. $-6$
• B. $6$
• C. $-\frac{1}{6}$
• D. $\frac{1}{6}$

Answer: Option A

Explanation:

• A. $a>0$
• B. $a \mathrm{Not}=1$
• C. $a>0,a \mathrm{Not}=1$
• D. $a \mathrm{Not}=1,a>2$

Answer: Option C

Explanation:

• A. $\sqrt{3}$
• B. $\frac{3}{2}$
• C. $3^2$
• D. $\frac{3}{2}$

Answer: Option D

Explanation:

• A. $১{২}^{২}$
• B. $২{২}^{২}$
• C. $২{৪}^{২}$
• D. $২{৩}^{২}$

Answer: Option A

Explanation:

• A. 1224
• B. 1254
• C. 1524
• D. 1560

Answer: Option B

Explanation:

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option D

Explanation:

• A. ৫.৯৫
• B. ৭.৪৮
• C. ১২.৬৮
• D. ৭.৬৮

Answer: Option D

Explanation:

• A. $\frac{৪}{৩৩}$
• B. $\frac{৪}{৯৯}$
• C. $\frac{১১২}{৯৯}$
• D. $\frac{১৪}{৯৯}$

Answer: Option A

Explanation:

• A. $n^2+1$
• B. $n^2-1$
• C. $n^2$
• D. $n$

Answer: Option C

Explanation:

• A. $\frac{n(n+1)(2n+1)}{2}$
• B. ${\left\{\frac{n(n+1)}{2}\right\}}^2$
• C. $\frac{n(n+1)}{2}$
• D. $n^2$

Answer: Option D

Explanation: