• A. $\frac{3}{5}$
• B. $\frac{2}{7}$
• C. $\frac{1}{3}$
• D. $\frac{1}{2}$

Answer: Option A

Explanation:

• A. $\frac{১}{৩}$
• B. $\frac{৩}{৭}$
• C. $\frac{২}{৫}$
• D. $\frac{৪}{৯}$

Answer: Option A

Explanation:

• A. $\frac{5}{27}$
• B. $\frac{7}{36}$
• C. $\frac{11}{45}$
• D. $\frac{2}{9}$

Answer: Option A

Explanation:

• A. ২০
• B. $২০\sqrt{২}$
• C. $২০\sqrt{৩}$
• D. ৪০০

Answer: Option C

Explanation:

• A. $6\sqrt{2}$
• B. $6\sqrt{3}$
• C. $9\sqrt{2}$
• D. $9\sqrt{3}$

Answer: Option C

Explanation:

• A. $\frac{১}{৪}$ অংশ
• B. $\frac{৩}{৪}$ অংশ
• C. $\frac{১}{৩}$ অংশ
• D. $\frac{২}{৩}$ অংশ

Answer: Option C

Explanation:

• A. ১২ দিনে
• B. ১০ দিনে
• C. $৪\frac{৩}{৪}$দিনে
• D. $১১\frac{১}{৪}$দিনে

Answer: Option D

Explanation:

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

Answer: Option B

Explanation:

• A. $\pi r$
• B. $\pi r^2$
• C. $\pi r^3$
• D. $2r$

Answer: Option B

Explanation:

• A. V = 4 πrh
• B. $V={\mathrm{\pi r}}^2\mathrm{h}$
• C. V = 4 πrh
• D. $V=2{\mathrm{\pi r}}^2\mathrm{h}$

Answer: Option B

Explanation:

• A. $a^2-b^2=\left(a+b\right)\left(a-b\right)$
• B. $a^2+b^2={\left(a+b\right)}^2 -2ab$
• C. $a^2+b^2={\left(a-b\right)}^2 +2ab$
• D. ${\left(a+b\right)}^2={\left(a-b\right)}^2 +4ab$

Answer: Option C

Explanation:

• A. $\frac{\sqrt{3}}{2}{m}^2$
• B. $\frac{\sqrt{3}}{4}{m}^2$
• C. $\frac{3}{2}m$
• D. $\frac{2}{\sqrt{3}}{m}^2$

Answer: Option B

Explanation:

• A. $১৬\frac{১}{৪}\%$
• B. $১৬\frac{২}{৩}\%$
• C. $৬\frac{২}{৩}\%$
• D. $৬\frac{১}{২}\%$

Answer: Option B

Explanation:

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

Answer: Option C

Explanation:

• A. 20 °
• B. $22\frac{1^{°}}{2}$
• C. ${23}^{°}$
• D. $23\frac{1^{°}}{2}$

Answer: Option B

Explanation: