Q.1
Correct Answer is:B
Solution Explain:
Q.2
Correct Answer is:D
Solution Explain:
Q.3
Correct Answer is:B
Solution Explain:
Q.4
Correct Answer is:A
Solution Explain:
Q.5
Correct Answer is:B
Solution Explain:
Q.6
Correct Answer is:A
Solution Explain:
Q.7
Correct Answer is:A
Solution Explain:
No required flags = 3! × coefficent of X3 in (1+ X+X2/2!)3= 6 ×4 = 24
Q.8
Correct Answer is:D
Solution Explain:
Q.9
Correct Answer is:A
Solution Explain:
Q.10
Correct Answer is:B
Solution Explain:
Q.11
Correct Answer is:B
Solution Explain:
Q.12
Correct Answer is:C
Solution Explain:
Out of the given numbers, the numbers which are multiple of 5 are 5,15,25.....145
This is an AP whose first term a=5
Common difference =10
nth term, tn=145
145=5+ (n−1) ×10
⇒n=15
Similarly if total number of numbers is m then
151=1+ (m−1) ×2
m−1=151−12
m=76
So number of ways in which product is a multiple of 5
⇒⇒ Both two numbers from 5, 15, 25....145+one number from 5, 15, 25,....145 and one from remaining numbers
⇒15C2 + 15C1 × 61C1
⇒15×7 + 15×61 = 1020
Q.13
Correct Answer is:D
Solution Explain:
Q.14
Correct Answer is:C
Solution Explain:
Q.15
Correct Answer is:C
Solution Explain:
Q.16
Correct Answer is:D
Solution Explain:
Q.17
Correct Answer is:A
Solution Explain:
Q.18
Correct Answer is:D
Solution Explain:
Q.19
Correct Answer is:A
Solution Explain:
Q.20
Correct Answer is:A
Solution Explain:
Q.21
Correct Answer is:A
Solution Explain:
Q.22
Correct Answer is:C
Solution Explain:
Q.23
Correct Answer is:C
Solution Explain:
Q.24
Correct Answer is:D
Solution Explain:
Q.25
Correct Answer is:C
Solution Explain:
Q.26
Correct Answer is:A
Solution Explain:
Q.27
Correct Answer is:B
Solution Explain:
Q.28
Correct Answer is:A
Solution Explain:
Q.29
Correct Answer is:B
Solution Explain:
Q.30
Correct Answer is:B
Solution Explain:
Q.31
Correct Answer is:B
Solution Explain:
Q.32
Correct Answer is:B
Solution Explain:
Q.33
Correct Answer is:C
Solution Explain:
Q.34
Correct Answer is:B
Solution Explain:
Q.35
Correct Answer is:B
Solution Explain:
Q.36
Correct Answer is:B
Solution Explain:
Q.37
Correct Answer is:B
Solution Explain:
Q.38
Correct Answer is:B
Solution Explain:
Q.39
Correct Answer is:D
Solution Explain:
Q.40
Correct Answer is:A
