• A. $3$
• B. $7$
• C. $5$
• D. $9$

Answer: Option B

Explanation:

• A. $\frac{x}{100}\%$
• B. $\frac{x}{5}\%$
• C. $\frac{25}{x}\%$
• D. $\frac{500}{x}\%$

Answer: Option D

Explanation:

• A. $3$
• B. $4$
• C. $5$
• D. $6$

Answer: Option A

Explanation:

• A. $\frac{n}{\sqrt{2-1}}$
• B. $\frac{n}{\sqrt{2+1}}$
• C. $\frac{\sqrt{2}}{n+1}$
• D. $\frac{\sqrt{2+1}}{n}$

Answer: Option A

Explanation:

• A. $32$
• B. $40$
• C. $48$
• D. $80$

Answer: Option B

Explanation:

• A. $-\frac{4}{5}$
• B. $\frac{4}{5}$
• C. $-\frac{3}{5}$
• D. $\frac{3}{5}$

Answer: Option A

Explanation:

• A. সমস্ত বাস্তব সংখ্যা
• B. -১ বাদে সমস্ত বাস্তব সংখ্যা
• C. ০ বাদে সমস্ত বাস্তব সংখ্যা
• D. ১ বাদে সমস্ত বাস্তব সংখ্যা

Answer: Option C

Explanation:

• A. 90°
• B. 120°
• C. 150°
• D. 180°

Answer: Option B

Explanation:

• A. ০.২৮৫৭
• B. ০.২৮৪৭
• C. ০.২৮৬৭
• D. ০.২৮৩৭

Answer: Option C

Explanation:

• A. $\sqrt[n]{a^m}$
• B. $\sqrt[mn]{a^m}$
• C. $\sqrt[n]{a^{mn}}$
• D. $\sqrt[mn]{a^n}$

Answer: Option A

Explanation:

• A. $x\le 2$
• B. $x\ge 2$
• C. $x\le -2$
• D. $x\ge -2$

Answer: Option D

Explanation:

• A. ৬৪
• B. ৩২
• C. ২০
• D. ১৬

Answer: Option D

Explanation:

• A. $৫$
• B. $৮$
• C. $৪$
• D. $২$

Answer: Option A

Explanation:

• A. $১৬$
• B. $৪$
• C. $৮$
• D. $৩২$

Answer: Option B

Explanation:

• A. $\left(6-a\right)\left(4a+1\right)$
• B. $\left(a-6\right)\left(4a+1\right)$
• C. $\left(a-6\right)\left(4a-1\right)$
• D. $\left(6-a\right)\left(4a-1\right)$

Answer: Option A

Explanation: