A club has 24 members of whom 16 play chess, 14 play bridge and a play both games. How many do not play either game ?
3
6
5
2
If n ( A ) = 50, n ( B ) = 35, n ( A ∩ B ) = 5, then n ( A U B ) is equal to ________.
80
35
50
30
In the given diagram, A - B is _______.
{ 5, 7, 8 }
{ 1, 2, 7 }
{ 1, 2 }
{ 1, 2, 5, 7, 8 }
The shaded portion in the diagram represents ?
(A∩B)'
(AUB)'
A' ∩ B'
None of these
In a school of 20 teachers, 10 teach French 8 teach German and teach Spanish, 2 teach French and German but none German and Spanish.How many teach French and Spanish ?
4
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
In a class there are 40 students, 26 have opted for Mathematics and 24 have opted for Science. How many students have opted for Mathematics and Science.
20
10
14
Of the 100 members of a sports club, 48 play squash ( S ), 45 play badminton ( B ), 52 play table tennis ( T ). 18 play squash and table tennis, 21 play badminton and table tennis, 15 play squash and badminton. Each member plays atleast one game and x members play all the three games.Find the members who play only squash.
15
24
26
If n (A) = 42, n (B) = 38, n ( AUB) = 70, then n (A∩B) is equal to _________
12
If n ( x ) = 15. n ( x U y ) = 40 and n( x ∩ y ) = 5, then n ( y ) = ________.
55
25
60