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General Aptitude
Quantitative Aptitude
GATE 2010
Easy

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:

  • A2
  • B17
  • C13
  • 3

Explanation

Number playing at least one sport = 15+17-10 = 22 (inclusion-exclusion for the union). Number playing neither = 25-22 = 3.

Source: GATE ME 2010 (2010)

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