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Five books are placed in a single stack. Which book is at the top? Statement I: Book C is immediately above book A, and book A is above every book except C. Statement II: There are exactly three books between C and E, with E at the bottom.

Competition practiceData Sufficiency
  • AEither statement alone is sufficient
  • BStatement II alone is sufficient but Statement I alone is not
  • CBoth statements together are needed (neither alone is sufficient)
  • DStatement I alone is sufficient but Statement II alone is not

Step-by-Step Solution

From I, A is second from top and C is above it, so C is on top. From II, E is 5th and three books lie between C and E, forcing C to position 1 (top).
Answer: A) Either statement alone is sufficient

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