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Which two-digit number is it? Statement I: The number equals 4 times the sum of its digits. Statement II: The number is 36. 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 is satisfied by 12, 24, 36 and 48, so it is not unique. II names the number directly, so II alone is sufficient.
Answer: C) Statement II alone is sufficient but Statement I alone is not

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