If n ( A U B ) = 45, n ( A ∩ B ) = 5 and n ( B ) = 22, then n ( A ) = _________.
22
23
28
33
A and B are two sets such that n (A - B ) = 14 + x, n( B - A ) = 3 x and n( A ∩ B ) = xgiven that n( A ) = n( B ).Calculate the numerical value of x
14
7
8
5
Of the people in a tourist club, 50 are going to Nepal, 100 to Delhi and 70 to Benaras. 20 only are going to Nepal and 30 only to Benaras. Hence, 10 are going to Benaras and Nepal only and 5 are going to all the three places.How many are going only to Delhi ?
25
55
35
45
If n (A) = 42, n (B) = 38, n ( AUB) = 70, then n (A∩B) is equal to _________
6
4
12
10
In a group of 50 students, 25 play hockey, 30 play football and 8 play neither game. Find the number of students who play both hockey and foot ball.
42
13
15
In a class of 50 students who opt form either Mathematics ( M ) or Biology ( B) or both, 40 opt for Biology and 20 opt for Mathematics. How many opt only for Mathematics and how many opt for both the subjects ?
10, 20
20, 20
10, 10
5, 10
Of the people in a tourist club, 50 are going to Nepal, 100 to Delhi and 70 to Benaras. 20 only are going to Nepal and 30 only to Benaras. Hence, 10 are going to Benaras and Nepal only and 5 are going to all the three places.How many are going to Benares and Delhi ?
20
Of 41 people, each rides a bicycle ordrives a car. 10 of them drive a car but do not ride a bicycle. 5 of them ride a bicycle but do nto drive a car. How many drive both ?
26
30
16
36
In a group of 50 studnets, 25 play hockey and 30 play foot ball. Find the number of students who play both hockey and foot ball.
In the given diagram, A - B is _______.
{ 5, 7, 8 }
{ 1, 2, 7 }
{ 1, 2 }
{ 1, 2, 5, 7, 8 }
