• A. $a^2-b^2$
• B. $a^3+b^3$
• C. $a^6-b^6$
• D. $a^6+b^6$

Answer: Option B

Explanation:

• A. $\frac{1}{2}$
• B. $\frac{1}{4}$
• C. 4
• D. 1

Answer: Option D

Explanation:

• A. -1
• B. -2
• C. -3
• D. -4

Answer: Option D

Explanation:

• A. 30
• B. 25
• C. 20
• D. 15

Answer: Option C

Explanation:

• A. 40°
• B. 120°
• C. 140°
• D. 180°

Answer: Option C

Explanation:

• A. $\frac{১}{২}\times$ভূমি × উচ্চতা
• B. $\frac{১}{২}\times$কর্ণদ্বয়ের গুণফল
• C. $\frac{১}{২}\times$(কর্ণদ্বয়ের যোগফল)
• D. দৈর্ঘ্য × প্রস্থ

Answer: Option B

Explanation:

• A. 40
• B. 50
• C. 60
• D. 70

Answer: Option C

Explanation:

• A. $\frac{২০}{৪১}$
• B. $\frac{২০}{৩৯}$
• C. $\frac{৪০}{৪১}$
• D. $\frac{৪০}{৩৯}$

Answer: Option B

Explanation:

• A. $\frac{৯}{১০০}$
• B. $\frac{৯}{১০০০}$
• C. $০.০০৯৯$
• D. $০.১০০$

Answer: Option D

Explanation:

• A. $1$
• B. $\sqrt{5}$
• C. $3$
• D. $2\sqrt{5}$

Answer: Option B

Explanation:

• A. 3
• B. 8
• C. 9
• D. 10

Answer: Option C

Explanation:

• A. 1
• B. 3
• C. 12
• D. 15

Answer: Option D

Explanation:

• A. 1
• B. 64
• C. 19
• D. 55

Answer: Option D

Explanation:

• A. ৬৪%
• B. ৪৪%
• C. ৩৬%
• D. ২০%

Answer: Option C

Explanation:

• A. 10
• B. 12
• C. 18
• D. 22

Answer: Option B

Explanation: