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Who is the youngest among four brothers A, B, C and D? Statement I: A is younger than B and C but older than D. Statement II: D is younger than A, B and C. Which statement(s) is/are sufficient to answer?

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

Step-by-Step Solution

I gives B, C > A > D so D is youngest. II directly says D is younger than all three. Each alone identifies D.
Answer: D) Either statement alone is sufficient

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