• A. 218
• B. 23
• C. 108
• D. 109

Answer: Option D

Explanation:

• A. 676
• B. 672
• C. 670
• D. 664

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

• A. ৫৪
• B. ৫৩
• C. ৫২
• D. ৫১

Answer: Option D

Explanation:

• A. 180
• B. 184
• C. 188
• D. 190

Answer: Option D

Explanation:

• A. $\frac{n\left(n+1\right)}{2}$
• B. $\frac{n^2\left(n+1\right)}{4}$
• C. $n^2$
• D. $\frac{n\left(n+1\right)\left(n+2\right)}{6}$

Answer: Option A

Explanation:

• A. 5000
• B. 5050
• C. 10000
• D. 2500

Answer: Option B

Explanation:

• A. 1
• B. 16
• C. 0.0
• D. অনির্ণেয়

Answer: Option D

Explanation:

• A. 0.110
• B. 0.010
• C. 0.101
• D. 0.011

Answer: Option D

Explanation:

• A. 4.5
• B. 0.045
• C. 45
• D. 0.45

Answer: Option D

Explanation:

• A. 4
• B. 0.4
• C. 0.04
• D. 0.004

Answer: Option C

Explanation:

• A. 1.01
• B. 1.001
• C. 2.01
• D. .001

Answer: Option B

Explanation:

• A. 0.0004
• B. 0.4
• C. 0.00004
• D. 0.004

Answer: Option A

Explanation:

• A. -30.0377
• B. -29.0377
• C. -32.8246
• D. -31.0377

Answer: Option A

Explanation:

• A. 1/2
• B. 1/40
• C. 1/80
• D. 1/8

Answer: Option D

Explanation: