• A. $1$
• B. $\frac{1}{3}$
• C. $3$
• D. $9$

Answer: Option C

Explanation:

• A. 4
• B. 1
• C. 6
• D. 8

Answer: Option A

Explanation:

• A. $1$
• B. $-1$
• C. $\pm 1$
• D. $0$

Answer: Option D

Explanation:

• A. 120%
• B. 125%
• C. 140%
• D. 150%

Answer: Option D

Explanation:

• A. 25
• B. 70
• C. 45
• D. 55

Answer: Option B

Explanation:

• A. 53
• B. 63
• C. 36
• D. 35

Answer: Option C

Explanation:

• A. ১২৫%
• B. ১৫০%
• C. ১৭৫%
• D. ১০০%

Answer: Option B

Explanation:

• A. 27 ও 60
• B. 30 ও 63
• C. 27 ও 63
• D. 30 ও 60

Answer: Option A

Explanation:

• A. 120%
• B. 125%
• C. 140%
• D. 150%

Answer: Option D

Explanation:

• A. $\frac{15}{19}$
• B. $\frac{13}{17}$
• C. $\frac{11}{15}$
• D. $\frac{9}{13}$

Answer: Option B

Explanation:

• A. 63
• B. 36
• C. 35
• D. 53

Answer: Option B

Explanation:

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

Answer: Option C

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option A

Explanation: