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

Answer: Option B

Explanation:

• A. $\frac{4}{3}{\mathrm{\pi r}}^3$
• B. $\frac{3}{4}{\mathrm{\pi r}}^3$
• C. $\frac{3}{4}{\mathrm{\pi }}^3\mathrm{r}$
• D. $\frac{3}{4}\mathrm{\pi r}$

Answer: Option A

Explanation:

• A. 15 meter
• B. 21 meter
• C. 26 meter
• D. 31 meter

Answer: Option B

Explanation:

• A. ১৮,৯
• B. ১০,৩
• C. ৬৩,৩
• D. কোনটিই নয়

Answer: Option D

Explanation:

• A. $4$
• B. $2$
• C. $1$
• D. $a^2$

Answer: Option C

Explanation:

• A. $x=16$
• B. $x=-16$
• C. $x=8$
• D. $x=5$

Answer: Option C

Explanation:

• B. 3
• C. 1
• D. 2

Answer: Option C

Explanation:

• A. 2
• B. 4
• C. 6
• D. 7

Answer: Option C

Explanation:

• A. ৫ ঘন্টা
• B. ১২ ঘন্টা
• C. ৬ ঘন্টা
• D. ১০ ঘন্টা

Answer: Option C

Explanation:

• A. $x-2$
• B. $x-3$
• C. $1$
• D. $-1$

Answer: Option D

Explanation:

• A. $x=0$
• B. $x+y=1$
• C. $3x+4y=3$
• D. $y=\frac{1}{x}$

Answer: Option D

Explanation:

• A. ৫৬
• B. ২৮
• C. ২০
• D. কোনটিই নয়

Answer: Option B

Explanation:

• A. $64$
• B. $16$
• C. $96$
• D. $32$

Answer: Option A

Explanation:

• A. $a^2+\frac{1}{a^2}$
• B. $\frac{1}{2}(a^2+\frac{1}{a^2})$
• C. $\frac{1}{4}(a^2+\frac{1}{a^2})$
• D. $2(a^2+\frac{1}{a^2})$

Answer: Option B

Explanation:

• A. $0$
• B. $-1$
• C. $1$
• D. $3$

Answer: Option C

Explanation: