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

Answer: Option B

Explanation:

• A. $\frac{৩}{৪}$
• B. $\frac{৫}{৬}$
• C. $\frac{৭}{৯}$
• D. $\frac{৯}{১৩}$

Answer: Option D

Explanation:

• A. 9
• B. 7
• C. 11
• D. 12

Answer: Option B

Explanation:

• A. 12
• B. 16
• C. 8
• D. 4

Answer: Option C

Explanation:

• A. 120
• B. 100
• C. 150
• D. 125

Answer: Option D

Explanation:

• A. ১৪ বছর
• B. ১৫ বছর
• C. ১৬ বছর
• D. ১৮ বছর

Answer: Option B

Explanation:

• A. $\frac{৩০}{৭}$
• B. $\frac{২২}{৭}$
• C. $\frac{৭}{২২}$
• D. $\frac{২৫}{৯}$

Answer: Option B

Explanation:

• A. $a^3+b^3+3ab(a+b)$
• B. $a^3+3a^{2}b+3ab+b^3$
• C. $a^3+3ab+3a{b}^2+b^3$
• D. $a^3+b^3-3ab(a-b)$

Answer: Option A

Explanation:

• A. ১৫%
• B. ৩০%
• C. ৪০%
• D. কোনটিই নয়

Answer: Option D

Explanation:

• A. .36
• B. .0036
• C. .00036
• D. .000036

Answer: Option D

Explanation:

• A. $\frac{1}{3}$
• B. $\frac{1}{4}$
• C. $\frac{1}{2}$
• D. $\frac{1}{24}$

Answer: Option A

Explanation:

• A. 39
• B. 45
• C. 18
• D. 35

Answer: Option A

Explanation:

• B. 1
• C. 2
• D. $\infty$

Answer: Option B

Explanation:

• A. $x-5$
• B. $x+5$
• C. $x(x+5)$
• D. $x(x-5)$

Answer: Option B

Explanation:

• A. $\sqrt{5}$
• B. $5$
• C. $2$
• D. $\sqrt{5}$

Answer: Option D

Explanation: