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What is the son's present age? Statement I: The father is 30 years older than his son, and the father is 45 years old. Statement II: The son's age is one-third of the father's age. Which statement(s) is/are sufficient to answer?

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 fixes both the gap and the father's age, giving son = 45 - 30 = 15. II gives only a ratio with no absolute value.
Answer: B) Statement I alone is sufficient but Statement II alone is not

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