10186 . নিচের কোনটি মৌলিক সংখ্যা? 

• A. ৯১
• B. ৮৭
• C. ৬৩
• D. ৫৯

Answer: Option D

Explanation:

• A. x=3
• B. x=2
• C. x=1
• D. x=4

Answer: Option A

Explanation:

• A. $\frac{২}{১১}$
• B. $\frac{১}{৫}$
• C. $\frac{১}{১১}$
• D. $\frac{১}{১০}$

Answer: Option D

Explanation:

• A. $a^2+2ab+b^2$
• B. $a^2-2ab+b^2$
• C. $a^2+2ab-b^2$
• D. $a^2-2ab-b^2$

Answer: Option A

Explanation:

• A. $\pi \sqrt{20}$
• B. $2\pi \sqrt{10}$
• C. $5\mathrm{\pi }$
• D. কোনটিই নয়

Answer: Option B

Explanation:

• A. 0 or 10
• B. 0 or 8
• C. 0 or 9
• D. None

Answer: Option A

Explanation:

• A. 2
• B. 4
• C. 6
• D. 8

Answer: Option D

Explanation:

• A. $\sqrt{3}$
• B. $\frac{9\sqrt{3}}{4}$
• C. $\frac{3\sqrt{3}}{4}$
• D. $2\sqrt{3}$

Answer: Option A

Explanation:

• A. $\frac{\sqrt{3}}{2}কএকক$
• B. $\frac{\sqrt{3}}{4}{ক}^{২}একক$
• C. $\frac{\sqrt{5}}{2}কএকক$
• D. কোনটিই নয়

Answer: Option A

Explanation:

• A. $2{\mathrm{\pi a}}^2$
• B. ${\mathrm{\pi a}}^2$
• C. $\frac{4}{3}{\mathrm{a}}^3$
• D. $2\mathrm{\pi ah}$

Answer: Option B

Explanation:

• A. 1
• B. a+b+c
• D. ab + bc + ca

Answer: Option C

Explanation:

• A. $\frac{10}{x}$
• B. $\frac{100}{x}$
• C. $\frac{1000}{x}$
• D. $\frac{x}{100}$

Answer: Option C

Explanation:

• A. $\frac{১}{২}>\frac{২}{৩}>\frac{৪}{৭}$
• B. $\frac{১}{২}>\frac{৪}{৭}>\frac{২}{৩}$
• C. $\frac{২}{৩}>\frac{৪}{৭}>\frac{১}{২}$
• D. $\frac{২}{৩}>\frac{১}{২}>\frac{৪}{৭}$

Answer: Option B

Explanation:

• A. ৭
• B. ৯
• C. ১০
• D. ১২

Answer: Option A

Explanation:

• A. 2x
• B. 4x
• C. $x^2$
• D. $2x^2$

Answer: Option C

Explanation: