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What is Ravi's present age? Statement I: The average age of Ravi and his brother is 20 years. Statement II: Five years from now, Ravi will be 30 years old.

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

I gives only the pair's average, not Ravi's own age. By II, Ravi = 30 - 5 = 25 years; II alone suffices.
Answer: B) Statement II alone is sufficient but Statement I alone is not

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