1 . The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

• A. 7
• B. 11
• C. 13
• D. 16

Answer: Option C

Explanation:

2 . f(x)=x3+9x3-3x-6 হয়, তবে f(-2)= কত?

• A. 28
• B. -44
• C. 32
• D. 26

Answer: Option A

Explanation:

3 . x=15, y=5 হলে x3-3x2y+3xy2-y3=?

• A. 800
• B. 1200
• C. 1400
• D. 1000

Answer: Option D

Explanation:

4 . fx=x3-3x2-9x

• A. $f"\left(2\right)<0$
• B. $f"\left(2\right)>0$
• C. $f"\left(2\right)=0$
• D. $f\text{'}\left(2\right)=0$

Answer: Option B

Explanation:

5 . 4a-8b2-3a-9b3-3a+b4a+8b3a-9b

• A. ${\left(a-b\right)}^3$
• B. $a^3-b^3$
• C. $a^3+b^3$
• D. ${\left(a+b\right)}^3$

Answer: Option D

Explanation:

6 . L o g 3 1/ 27 = log 3 3 − 3  = কত?

• A. 3
• B. -3
• C. 9
• D. -9

Answer: Option B

Explanation:

7 . 3+3×3-3

• A. -1
• B. 0
• C. -9
• D. 9

Answer: Option D

Explanation:

8 . x3-3x2+4x-4?

• A. $\left(x-2\right)\left(x^2-x+2\right)$
• B. $\left(x-2\right)\left(x^2+x-2\right)$
• C. $\left(x-2\right)\left(2x^2-x+4\right)$
• D. $\left(x^2-2\right)\left(x+2x+4\right)$

Answer: Option A

Explanation:

9 . 3-3

• A. $\frac{1}{9}$
• B. $\frac{1}{3}$
• C. $\frac{1}{27}$
• D. $\sqrt{3}$

Answer: Option C

Explanation:

10 . a3-3a2-1

• A. 124
• B. 126
• C. 64
• D. 216

Answer: Option C

Explanation:

11 . k-এর মান কত হলে, 2x – y - 7 = 3 3x ও 3x – 5 = 0 রেখা দুটি পরস্পর লম্ব হবে?

• A. 5
• B. 6
• C. 7
• D. 3

Answer: Option B

Explanation:

12 . দুইটি সুরশলাকার কম্পাঙ্ক যথাক্রমে 128 Hz 3 384 Hz। বায়ুতে শলাকা দুটি হতে সৃষ্ট তরঙ্গের দৈর্ঘ্যের অনুপাত কত?

• A. 3 : 1
• B. 1 : 3
• C. 2 : 1
• D. 1 : 2

Answer: Option A

Explanation:

13 . k-এর মান কত হলে, 2x – y - 7 = 3 3x ও 3x – 5 = 0 রেখা দুটি পরস্পর লম্ব হবে?

• A. 5
• B. 6
• C. 7
• D. 3

Answer: Option B

Explanation:

14 . ∫x=x3-3x2+6x+2

• A. 1
• B. 5
• C. 10
• D. কোনটিই নয়

Answer: Option D

Explanation:

15 . 33-3i-33+9i

• A. $54\sqrt{3}$
• B. $27\sqrt{3}$
• C. $36\sqrt{3}$
• D. $45\sqrt{3}$

Answer: Option C

Explanation: