• A. $a>0$
• B. $b>0$
• C. $x\ne 0$
• D. $a\ne 1$

Answer: Option C

Explanation:

• B. 1
• C. $\sqrt{2}$
• D. i

Answer: Option B

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 A

Explanation:

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

Answer: Option D

Explanation:

• A. 9
• B. 3
• C. 7

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. $\frac{৪০}{৯০}$
• B. $\frac{৪০}{১০}$
• C. $\frac{৪৭}{৯৯}$
• D. $\frac{৪৭}{১০০}$

Answer: Option D

Explanation:

• A. $(a + b)/(a-b)$
• B. $(a+b)\times (a-b)$
• C. $(a-b)/(a-b)$
• D. $ab$

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. 20°
• B. 30°
• C. 60°
• D. 45°

Answer: Option A

Explanation:

• A. ০.১
• B. ০.০০১
• C. ০.০০০১
• D. ১.০

Answer: Option B

Explanation:

• A. -4
• B. -2
• D. 2

Answer: Option C

Explanation:

• A. 2
• B. -3
• C. 1
• D. -2

Answer: Option D

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: