25 persons are in a room. 15 of them play hockey, 17 of

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25 persons are in a room. 15 of them play hockey, 17 of them play football and 10 of them play both hockey and football. Then the number of persons playing neither hockey nor football is

1. 2
2. 17
3. 13
4. 3

Correct Option: D

∴ 5 + 10 + 7 + x = 25 ⇒ x = 3