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How many students in a class play football ?

Statements:

1. Only boys play football.

2. There are forty boys and thirty girls in the class.

  • A.1 alone is sufficient while 2 alone is not sufficient
  • B.2 alone is sufficient while 1 alone is not sufficient
  • C.Either 1 or 2 is sufficient
  • D.Neither 1 nor 2 is sufficient

Answer: D

Correct answer: Neither 1 nor 2 is sufficient

Statement 1 says only boys play, which restricts who might play but gives no number. Statement 2 gives forty boys but does not say how many of them play. Together they establish only that the answer lies between nought and forty, which is not an answer.

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