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Question

In a class of 60 students, 25 students play cricket and 20 students play tennis, and 10 students play both the games, then the number of students who play neither are

A
0
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B
35
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C
45
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D
25
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Solution

The correct option is D 25
Let 'A' be the set of students who play cricket, 'B' be the set of students who play tennis.
It is given that, n(A)=25, n(B)=20 and n(AB)=10= students who play both the games
Thus n(AB)=n(A)+n(B)n(AB)=20+2510=35

Therefore the students who play neither of the cricket and tennis =6035=25

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