• A. $\left(x^2+1\right)/x$
• B. $\left(x^2-1\right)/x$
• C. $\left(x^2+1\right)/2x$
• D. $\left(x^2-1\right)/2x$

Answer: Option D

Explanation:

• A. -1
• B. 1/3
• C. 2/3
• D. 2
• E. None of them

Answer: Option E

Explanation:

• A. x ≤ -2
• B. x ≥ -2
• C. x ≤ -1
• D. x ≥ -1

Answer: Option D

Explanation:

• A. -1.4 and 2.4
• B. -1 and 2
• C. 0.3 and 3.1
• D. 0.15 and 1.55

Answer: Option C

Explanation:

• A. 2
• B. 25
• C. 10
• D. 1

Answer: Option D

Explanation:

• A. $\frac{1}{3}$
• B. $\frac{1}{2}$
• C. $\frac{2}{3}$
• D. $\frac{3}{4}$

Answer: Option C

Explanation:

• A. 15/16
• B. 7/8
• C. 1/4
• D. 1/8

Answer: Option A

Explanation:

• A. 1000000
• B. 1600000
• C. 2000000
• D. 2500000

Answer: Option C

Explanation:

• A. 18/5
• B. 19/6
• C. 24/11
• D. 6/19

Answer: Option D

Explanation:

• A. y > x
• B. x > y
• C. x < 0
• D. y < 0

Answer: Option A

Explanation:

• A. x<5
• B. x>5
• D. x=0

Answer: Option A

Explanation:

• A. 300
• B. 33.33
• C. 66.66
• D. 40

Answer: Option A

Explanation:

• A. 100
• B. 20
• C. 50
• D. 45

Answer: Option D

Explanation:

 ১ম ব্যক্তি অবশিষ্ট 9 জনের সাথে handshake করে
    ২য়   ,,     ,,    8   ,,    ,,        ,,        ,,	
    ৩য়   ,,     ,,    7    ,,      ,,          ,,           ,,
⸫ Total Handshake  =   n(n−1)2=10(10−1)2=45�(�-1)2=10(10-1)2=45

• A. 5 days
• B. 6 days
• C. 8 days
• D. 16 days

Answer: Option C

Explanation:

• A. 25
• B. 27
• C. 26
• D. 29

Answer: Option B

Explanation: