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What is A's present age? Statement I: A is 5 years older than B. Statement II: B is 20 years old. Which statement(s) are sufficient to answer the question?

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

Step-by-Step Solution

I gives only the difference (A=B+5); II gives only B=20. Together A=25, so both statements are required.
Answer: C) Both statements together are needed (neither alone is sufficient)

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