Answers

2015-03-03T17:47:46+05:30
Total number of players = n(CUF) 15
No. of players playing cricket = n(C) = 11
No. of players playing football = n(F) = 11
No. of players play both = n(C П F) = ?

We know that, n (C П F) = n(C) + n(F) - n(CUF)
                                       = 11 + 11 - 15
                                       = 7

7 Players play both games
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