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

Answer: Option B

Explanation:

• A. $\frac{৬}{১১}$
• B. $\frac{৮}{১৪}$
• C. $\frac{৩}{৫}$
• D. $\frac{৫}{৮}$

Answer: Option D

Explanation:

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

Answer: Option D

Explanation:

• A. $\frac{p+q-q}{pqr}$
• B. $\frac{pq+pr-pq}{pqr}$
• C. $\frac{pq+qr-pr}{pqr}$
• D. $\frac{pqr}{qr+pr-pq}$

Answer: Option D

Explanation:

• A. $\frac{5}{6}$
• B. $1\frac{2}{3}$
• C. $1\frac{7}{8}$
• D. $3\frac{3}{4}$

Answer: Option B

Explanation:

• A. $৬{০}^{\circ },৫{০}^{\circ },৭{০}^{\circ }$
• B. $৬{০}^{\circ },৬{০}^{\circ },৬{০}^{\circ }$
• C. $৮{০}^{\circ },৯{০}^{\circ },১{০}^{\circ }$
• D. কোনোটিই নয়

Answer: Option B

Explanation:

• A. $০.{১}^{\circ }{১}^{\circ }$
• B. $০$
• C. $০.{০}^{\circ }{১}^{\circ }$
• D. $০.০১$

Answer: Option B

Explanation:

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

Answer: Option D

Explanation:

• A. $\frac{x+p}{y+q}$
• B. $\frac{x+p}{{\displaystyle \frac{x}{y}}+{\displaystyle \frac{p}{q}}}$
• C. $\frac{xy+pq}{y+q}$
• D. $\frac{xy+pq}{{\displaystyle \frac{x}{y}}+{\displaystyle \frac{p}{q}}}$

Answer: Option B

Explanation:

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

Answer: Option D

Explanation:

• A. $\frac{২}{৩}$
• B. $\frac{১৩}{১৫}$
• C. $\frac{৪}{৫}$
• D. $\frac{২৩}{৩০}$

Answer: Option B

Explanation:

• A. $\sqrt{-3}$
• C. $\sqrt{3}$
• D. $\sqrt{\frac{2}{3}}$

Answer: Option A

Explanation:

• A. $a^2=bc$
• B. $b^2=ac$
• C. ab=bc
• D. a=b=c

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. $y^2=ax$
• B. $x^2+y^2=16$
• C. $ax+bx+c=0$
• D. $y^2=2x+7$

Answer: Option B

Explanation: