In a class of 30 students 18 play football 14 play circket and 5 do not play any game,how many students play both the games ?

In a class of 30 students 18 play football 14 play circket and 5 do not play any game,how many students play both the games ?

A 5

B 7

C 9

D 11

Solution

Correct Answer: Option B

T=A+B-AB+N

Here, T=Total = 30

A = Play football = 18

B = Play cricket = 14

AB = play both the game = ?

N = Not play any game = 5

So, 30 =18 + 14 - AB + 5

=> AB = 37-30

=> AB = 7

Ans. 7