Multiple choice

Directions: The question below is followed by two statements I and II. You have to decide whether the data provided in the statements is sufficient to answer the question. Read both the statements and choose the correct alternative.

Which 2-digit number is it?

I. Sum of the digits is 6. II. The digit at ten's place is double the digit at unit's place.

  1. The data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.

  2. The data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.

  3. The data in statement I or in statement II alone is sufficient to answer the question.

  4. The data in both statements I and II together is necessary to answer the question.

  5. The data in both statements I and II is not sufficient to answer the question.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Statement I alone is not sufficient as the number could be 42, 24, 51, 15, 60 or 33. Statement II alone is not sufficient as the number could be 84, 63, 42 or 21. Combining the statements I and II, we get the number as 42.

Hence, option (4) is the correct answer. 

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