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Eighty-nine s...

Question

Eighty-nine students of class VIII appeared for a combined test in Maths and Physics. If $62$ students passed in both ; $4$ failed in Maths and Physics and $7$ failed only in Maths. Use a Venn-diagram to find: how many passed in Maths.

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Solution

From the Venn diagram , $7 + 4 = 11$ failed in Maths.
So, $89 - 11 = 78$ students passed in Maths

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