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What is Nitin's rank from the top in a class of forty students ?

Statements:

1. There are ten students between Nitin and Deepak.

2. Deepak is twentieth from the top.

  • 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 or 2 is sufficient

Answer: D

Correct answer: Neither 1 or 2 is sufficient

Statement 2 places Deepak twentieth from the top and statement 1 puts ten students between him and Nitin, but Nitin may be on either side - ninth from the top or thirty-first. The two possibilities cannot be distinguished, so even both statements together fail to fix the rank.

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