In a class of students, play football, play hockey and play both. How many play neither sport?
Answer and explanation
Correct answer: B. 5
- Step 1: Students who play at least one sport: (subtract the overlap once).
- Step 2: Neither: .
Answer
5.
Why not the others: 8: This is the number who play both sports. 15: This subtracts only the football players from . 13: This adds the overlap of twice, so it works out .
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