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

Answer: Option D

Explanation:

• A. $4\frac{1}{2}km/hr$
• B. $5\frac{1}{2}km/hr$
• C. $7\frac{1}{2}km/hr$
• D. $3\frac{1}{2}km/hr$

Answer: Option A

Explanation:

• A. $3$
• B. $2$
• C. $-3$
• D. $-2$

Answer: Option C

Explanation:

• A. $\frac{0.00004}{0.005}$
• B. $\frac{0.01}{0.003}$
• C. $\frac{0.003}{0.006}$
• D. $\frac{0.001}{0.01}$

Answer: Option B

Explanation:

• A. 0.5
• B. 0.6
• C. 0.7
• D. 0.8

Answer: Option C

Explanation:

• A. $\left(x-5\right)+\left(x+4\right)$
• B. $\left(x+5\right)+\left(x-4\right)$
• C. $\left(x+4\right)+\left(x-5\right)$
• D. $\left(x-4\right)+\left(x-5\right)$

Answer: Option B

Explanation:

• 
• A. 16
• B. 32
• C. 48
• D. None

Answer: Option B

Explanation:

• A. 18
• B. 22
• C. 27
• D. 28

Answer: Option C

Explanation:

• A. 12
• B. 15
• C. 10
• D. 12.5

Answer: Option C

Explanation:

• A. $\frac{১}{৩}$
• B. $\frac{১}{২}$
• C. $\frac{১৬}{২৭}$
• D. $\frac{৫}{৯}$

Answer: Option A

Explanation:

• A. 2
• B. 8
• C. 4
• D. 6

Answer: Option B

Explanation:

• A. 60
• B. 120
• C. 180
• D. 200

Answer: Option B

Explanation:

• A. $3\sqrt{6}$
• B. $2\sqrt{3}$
• C. $2$
• D. $9$

Answer: Option D

Explanation:

• A. $10\sqrt{20 }km$
• B. $10\sqrt{10 }km$
• C. $20\sqrt{10 }km$
• D. $30\sqrt{10 }km$

Answer: Option B

Explanation:

• A. $\frac{3}{8}$
• B. $\frac{1}{2}$
• C. $\frac{1}{8}$
• D. $none$

Answer: Option A

Explanation: