• B. 1
• C. 225
• D. $\frac{1}{225}$

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

• A. $60a^4{b}^2{c}^4$
• B. $27a^4{b}^2{c}^4$
• C. $15a^3{b}^2{c}^3$
• D. $3a^3 bc³$

Answer: Option D

Explanation:

• A. $0.88$
• B. $\frac{209}{240}$
• C. $\frac{15}{16}$
• D. 0.74

Answer: Option B

Explanation:

• A. 3.85
• B. 3.75
• C. 3.95
• D. 3.65

Answer: Option C

Explanation:

• B. 2
• C. 3
• D. -3

Answer: Option C

Explanation:

• A. 5
• B. 2
• C. -2
• D. 4

Answer: Option A

Explanation:

• A. $S_{\infty }= \frac{20}{3}$
• B. $S_{\infty }= \frac{3}{20}$
• C. $S_{\infty }= 20$
• D. $S_{\infty }= 3$

Answer: Option B

Explanation:

• A. 728
• B. 286
• C. 364
• D. 1001

Answer: Option B

Explanation:

• A. $\frac{1}{2}$
• B. $\frac{2}{8}$
• C. $\frac{3}{8}$
• D. $\frac{2}{4}$

Answer: Option C

Explanation:

• A. $\frac{1}{30}$
• B. $\frac{1}{60}$
• C. $\frac{1}{15}$
• D. কোনোটিই নয়

Answer: Option C

Explanation:

• A. $-\sqrt{3}$
• B. $9$
• C. $-9\sqrt{3}$
• D. $3\sqrt{3}$

Answer: Option D

Explanation:

• A. $\frac{n\left(n+1\right)}{2}$
• B. $\frac{n\left(n+1\right)\left(2n+1\right)}{6}$
• C. ${\left\{\frac{n\left(n+1\right)}{2}\right\}}^2$
• D. একটিও নয়

Answer: Option C

Explanation:

• A. $4/3$
• B. $1/2$
• C. $2/3$
• D. $3/2$

Answer: Option B

Explanation:

• A. $3$
• B. $4$
• C. $5$
• D. $6$

Answer: Option D

Explanation: