• A. $\frac{1}{3}mh$
• B. $\frac{2}{3}mh$
• C. $m$
• D. $3m$

Answer: Option D

Explanation:

• A. ${\left(a+b\right)}^2-{\left(a-b\right)}^2$
• B. ${\left(a+b\right)}^2+{\left(a-b\right)}^2$
• C. ${\left(a-b\right)}^2+{\left(a-b\right)}^2$
• D. ${\left(a+b\right)}^2+{\left(a-b\right)}^2$

Answer: Option A

Explanation:

• A. ${\left(x+y\right)}^2$
• B. ${\left(x-y\right)}^2$
• C. $x^2-y^2$
• D. $y^2-x^2$

Answer: Option D

Explanation:

• A. ০.২৬ কি.মি.
• B. ২ কি.মি.
• C. ৩.৭৫ কি.মি.
• D. ৪ কি.মি.

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

• A. $\frac{৭}{২২}$
• B. $\frac{৪}{৫}$
• C. $\frac{৫}{৪}$
• D. $\frac{২২}{৭}$

Answer: Option C

Explanation:

• A. $\frac{১}{৮}$
• B. $\frac{১}{৩}$
• C. $\frac{৩}{৪}$
• D. $\frac{২}{৫}$

Answer: Option D

Explanation:

• A. $2x^2+2x+1$
• B. $2x^2+4x+1$
• C. $4x^2+2x+1$
• D. $4x^2+4x+1$

Answer: Option D

Explanation:

• A. ৬ দিন
• B. ৭ দিন
• C. ৮ দিন
• D. ৯ দিন

Answer: Option A

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

Answer: Option D

Explanation:

• A. $\frac{x+p}{y+q}$
• 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. $\frac{২}{৩}$
• 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: