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What is the present age of B? Statement I: A is 4 years older than B. Statement II: A's present age is 20 years. Which statement(s) is/are sufficient?

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

Step-by-Step Solution

I gives only a difference and II only A's age; together B = 20 - 4 = 16, so both are required.
Answer: D) Both statements together are needed (neither alone is sufficient)

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