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Five books P, Q, R, S and T are stacked one above another. Which book is on the top of the stack? Statement I: S is placed above every other book. Statement II: R is immediately above Q, and T is at the bottom.

Competition practiceData Sufficiency
  • AStatement I alone is sufficient but Statement II alone is not
  • BBoth statements together are needed (neither alone is sufficient)
  • CStatement II alone is sufficient but Statement I alone is not
  • DEither statement alone is sufficient

Step-by-Step Solution

I puts S above all others, so S is on top — sufficient. II fixes only the bottom book and one adjacency, leaving the top undetermined.
Answer: A) Statement I alone is sufficient but Statement II alone is not

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