• A. $\frac{8}{১৫}$
• B. $\frac{৯}{১৬}$
• C. $\frac{৯}{১৭}$
• D. $\frac{১০}{১৭}$

Answer: Option C

Explanation:

• A. $\frac{121}{80}$
• B. $\frac{121}{81}$
• C. $\frac{121}{49}$
• D. $\frac{49}{121}$

Answer: Option B

Explanation:

• A. 100
• B. 121
• C. 144
• D. ওপরের একটিও নয়

Answer: Option B

Explanation:

• A. $2\frac{১}{২}$
• B. $2\frac{৫}{৬}$
• C. $৩\frac{১}{৩}$
• D. $২\frac{১}{৩}$

Answer: Option D

Explanation:

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

Answer: Option C

Explanation:

• A. ২২
• B. ২৬
• C. ২৮
• D. ৩০

Answer: Option B

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. ৬
• B. ৯
• C. ১২
• D. ১৫

Answer: Option B

Explanation:

• A. n-1/n+1
• B. 2n/n+1
• C. 1/n
• D. n/n+1

Answer: Option D

Explanation:

• A. 90 sq. m
• B. 64 sq. m
• C. 63 sq. m
• D. 70 sq. m

Answer: Option C

Explanation:

• A. গ্রাম
• B. ফুট
• C. লিটার
• D. এয়র

Answer: Option C

Explanation:

• A. 142 , 163
• B. 144, 169
• C. 145 , 168
• D. 140 , 160

Answer: Option D

Explanation:

• A. 1080
• B. 1240
• C. 1460
• D. 1620
• E. 1800

Answer: Option B

Explanation:

• A. -1
• B. 1
• C. $\frac{1}{2}$

Answer: Option B

Explanation:

• A. ৮
• B. ১০
• C. ১৪
• D. ১৫

Answer: Option D

Explanation: