• A. $10:12$
• B. $9:10$
• C. $3:5$
• D. $1:2$

Answer: Option D

Explanation:

• A. $8$
• B. $6$
• C. $4$
• D. $2$

Answer: Option C

Explanation:

• A. $2-\frac{2}{x^2-y^2}$
• B. $2-\frac{2x}{x^2-y^2}$
• C. $\frac{2}{x^2-y^2}$
• D. $\frac{2x}{x^2-y^2}-2$

Answer: Option D

Explanation:

• A. $0$
• B. $\sqrt{3}$
• C. $3\sqrt{3}$
• D. $1$

Answer: Option B

Explanation:

• A. $3$
• B. $2$
• C. $1$
• D. $0$

Answer: Option C

Explanation:

• A. $9$
• B. $18$
• C. $19$
• D. $27$

Answer: Option A

Explanation:

• A. 30
• B. 60
• C. 200
• D. 420

Answer: Option B

Explanation:

• A. $x+y\ge 5$
• B. $x+y\le 11$
• C. $x-y\le 5$
• D. $x-y\ge 5$

Answer: Option D

Explanation:

• A. 1/4
• B. 3/4
• C. 1

Answer: Option D

Explanation:

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

Answer: Option C

Explanation:

• A. $\frac{\sqrt{3}}{2}$
• B. $\frac{\sqrt{7}}{3}$
• C. $\frac{\sqrt{9}}{4}$
• D. $\frac{\sqrt{11}}{5}$

Answer: Option C

Explanation:

• A. $0$
• B. $1$
• C. $2$
• D. $3$

Answer: Option A

Explanation:

• A. -1 অথবা 2
• B. 1 অথবা 2
• C. 1 অথবা -2
• D. -1 অথবা -2

Answer: Option C

Explanation:

• A. $\left(2,4\right)$
• B. $\left(4,2\right)$
• C. $\left(4,8\right)$
• D. $\left(8,4\right)$

Answer: Option B

Explanation:

• A. $3XYZ$
• B. $-3XYZ$
• C. $-XYZ$
• D. $XYZ$

Answer: Option D

Explanation: