2012
Mathematics
67ca00ce0c643c71d77dee1f
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 Answer: 1
Explanation
n(f ∩ v) + n(f) + n(v) + n(f ∩ v) = 46 3 + 19 + 23 + x = 46 22 + 23 + x = 46 45 + x = 46 x = 46 - 45 x = 1
n(f ∩ v) + n(f) + n(v) + n(f ∩ v) = 46 3 + 19 + 23 + x = 46 22 + 23 + x = 46 45 + x = 46 x = 46 - 45 x = 1THIS WEEK's
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