Asked by Pre dice
In an examination of certain number of candidates 18 passed mathematics, 17 passed physics, 11 passed both mathematics and physics, 1 failed both subjects. Find the number of candidates that passed. i. Mathematics only. ii. Total number of candidates that sat for the examination.
Answers
Answered by
oobleck
math only: 18-11
total: 18+17-11+1
total: 18+17-11+1
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