• A. $\frac{x+y}{mn}$
• B. $\frac{x+y}{m+n}$
• C. $\frac{mx+ny}{m+n}$
• D. $\frac{mx+ny}{mn}$

Answer: Option C

Explanation:

• A. $35\sqrt{5}$
• B. $40\sqrt{5}$
• C. $45\sqrt{5}$
• D. $50\sqrt{5}$

Answer: Option D

Explanation:

• A. $\frac{\mathrm{\pi rx}}{180°}$ একক
• B. $\frac{\mathrm{rx}}{180°}$ একক
• C. $rx$ একক
• D. $\frac{\mathrm{\pi x}}{180°}$ একক

Answer: Option A

Explanation:

• A. $5\sqrt{3}$ সে.মি
• B. $3\sqrt{5}$ সে.মি
• C. $5\sqrt{5}$ সে.মি
• D. $5\sqrt{2}$ সে.মি

Answer: Option A

Explanation:

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

Answer: Option D

Explanation:

• A. $\sqrt{3}$
• B. $4\sqrt{3}$
• C. $8\sqrt{3}$
• D. $16\sqrt{3}$

Answer: Option C

Explanation:

• A. $n^2$
• B. $\frac{n\left(n+1\right)}{2}$
• C. ${\left\{\frac{n\left(n+1\right)}{2}\right\}}^2$
• D. $\frac{n\left(n+1\right)\left(2n+1\right)}{6}$

Answer: Option D

Explanation:

• A. $C=p{\left(1+n\right)}^r$
• B. $C=P\left(1+r^n\right)$
• C. $P=C{\left(1+r\right)}^n$
• D. $C=p{\left(1+r\right)}^n$

Answer: Option D

Explanation:

• A. $p+q$
• B. $p+q+1$
• C. $pq$
• D. $pq+2$

Answer: Option A

Explanation:

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

Answer: Option D

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. $\left(10x+20\right)/\left(x+5\right)/15$
• B. $\left(10x+20\right)/\left(x+5\right)$
• C. $\left(x+10\right)/1.5$
• D. কোনটিই নয়

Answer: Option C

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. $\frac{1}{3}$
• B. $\frac{6}{16}$
• C. $\frac{2}{11}$
• D. $\frac{9}{2}$

Answer: Option D

Explanation:

• A. $\frac{২৩}{২৬}$
• B. $\frac{১৩}{১৫}$
• C. $\frac{১৫}{১৭}$
• D. $\frac{১৯}{২২}$

Answer: Option A

Explanation: