In a class of 46 students 22 play football and ... - JAMB Mathematics 2012 Question
In a class of 46 students, 22 play football and 26 play volleyball. If 3 students play both games, how many play neither?
A
1
B
2
C
3
D
4
correct option: a
n(f (\cap) v) + n(f) + n(v) + n(f (\cap) v) = 46
3 + 19 + 23 + x = 46
22 + 23 + x = 46
45 + x = 46
x = 46 - 45
x = 1
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