• A. $\sqrt{3}$
• B. $4\sqrt{3}$
• C. $8\sqrt{3}$
• D. $16\sqrt{3}$

Answer: Option C

Explanation:

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

Answer: Option D

Explanation:

• A. একটি স্বাভাবিক সংখ্যা
• B. একটি পূর্ণ সংখ্যা
• C. একটি মূলদ সংখ্যা
• D. একটি অমূলদ সংখ্যা

Answer: Option D

Explanation:

• A. $\frac{1}{2}\left(a+b\right)h$
• B. $\frac{\sqrt{3}}{4}{a}^2$
• C. $6a^2$
• D. ${\mathrm{\pi r}}^2\mathrm{h}$

Answer: Option A

Explanation:

• A. $\frac{৭৭}{১৪৩}$
• B. $\frac{১০২}{২৮৯}$
• C. $\frac{১১৩}{৩৫৫}$
• D. $\frac{৩৪৩}{১০০১}$

Answer: Option C

Explanation:

• A. $\frac{১}{১১}$
• B. $\frac{৩}{৩১}$
• C. $\frac{৩}{৪১}$
• D. $\sqrt{০.০২}$

Answer: Option A

Explanation:

• A. $\frac{৫}{৬}$
• B. $১\frac{২}{৩}$
• C. $১\frac{১}{৭}$
• D. $৩\frac{৩}{৪}$

Answer: Option B

Explanation:

• A. $\frac{A+B}{2}$
• B. $\frac{AM+BN}{2}$
• C. $\frac{AM+BN}{M+N}$
• D. $\frac{AM+BN}{A+B}$

Answer: Option C

Explanation:

• A. $০.৩$
• B. $\frac{১}{৩}$
• C. $\sqrt{০.০৩}$
• D. $\frac{২}{৫}$

Answer: Option C

Explanation:

• A. $২৫\%$
• B. $৩৩\frac{১}{৩}\%$
• C. $৫০\%$
• D. $৬৬\frac{২}{৩}\%$

Answer: Option B

Explanation:

• A. $5\mathrm{\pi }$
• B. $10\mathrm{\pi }$
• C. $25\mathrm{\pi }$
• D. $100\mathrm{\pi }$

Answer: Option C

Explanation:

• A. $C=P{\left(1+n\right)}^r$
• B. $C=P\left(1+r^n\right)$
• C. $P=C{\left(1+r\right)}^n$
• D. $C=P{\left(1+r\right)}^n$

Answer: Option D

Explanation:

• A. $0$
• B. $1$
• C. $\left[1+{\left(-1\right)}^n\right]$
• D. $\frac{1}{2}\left[1-{\left(-1\right)}^n\right]$

Answer: Option D

Explanation:

• A. $\sqrt{২}$
• B. $\sqrt{৩}$
• C. $২$
• D. $৩$

Answer: Option B

Explanation:

• A. $4\mathrm{\pi }-8$
• B. $2\mathrm{\pi }-4$
• C. $4\mathrm{\pi }+8$
• D. $2\mathrm{\pi }+4$

Answer: Option A

Explanation: