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

Answer: Option B

Explanation:

• A. $a^2=b^2+c^2$
• B. $b^2=c^2+a^2$
• C. $c^2=a^2+b^2$
• D. কোনটিই নয়

Answer: Option C

Explanation:

• A. $\frac{১৫}{১৬}$ ঘণ্টা
• B. $১৫$ ঘণ্টা
• C. $৭\frac{৩}{৫}$ ঘণ্টা
• D. $৯\frac{৩}{৫}$ ঘণ্টা

Answer: Option D

Explanation:

• A. $\frac{x}{y}$ ঘণ্টা
• B. $\frac{y}{x}$
• C. $xy$
• D. কোনটিই নয়

Answer: Option A

Explanation:

• A. $৬\frac{২}{৩}\%$
• B. $৬\frac{১}{৩}\%$
• C. $১০\%$
• D. $৯\%$

Answer: Option A

Explanation:

• A. $I^2=\sqrt{h^2+r^2}$
• B. $I=\sqrt{h^2+r^2}$
• C. $I=\pm \sqrt{h^2+r^2}$
• D. $I=\frac{h^2+r^2}{2\mathrm{\pi r}}$

Answer: Option B

Explanation:

• A. $\frac{২}{৫}$
• B. $\frac{৩}{৭}$
• C. $\frac{৪}{৯}$
• D. $\frac{৫}{১১}$

Answer: Option D

Explanation:

• A. $\frac{x+a}{2}$
• B. $\frac{y+b}{2}$
• C. $\frac{xy+ab}{y+b}$
• D. $\frac{xy+ab}{x+a}$

Answer: Option D

Explanation:

• A. $9 m^2$
• B. $6 m^2$
• C. $8 m^2$
• D. $4.5 m^2$

Answer: Option D

Explanation:

• A. $\frac{1}{3}$
• B. $\frac{2}{7}$
• C. $\frac{5}{21}$
• D. $\frac{3}{6}$

Answer: Option C

Explanation:

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

Answer: Option B

Explanation:

• A. $2\sqrt{3}$
• B. $4\sqrt{3}$
• C. $6\sqrt{3}$
• D. $3\sqrt{3}$

Answer: Option A

Explanation:

• A. $\frac{100}{y^2}$
• B. $\frac{y^2}{100}$
• C. $\frac{y}{100}$
• D. $\frac{100}{y}$

Answer: Option A

Explanation:

• A. $9\frac{1}{11}\%$
• B. $9\frac{2}{11}\%$
• C. $11\frac{1}{11}\%$
• D. কোনটিই নয়

Answer: Option A

Explanation:

• A. $21\pi m^2$
• B. $100\pi m^2$
• C. $31\pi m^2$
• D. $121\pi m^2$

Answer: Option A

Explanation: