Question

The sum of ages of M, N and 0 is 50 yr. What is N's age? I. N is 10 yr older than M. II. 0 is 30 yr old.

• A. If 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
• B. If the data either in statement I alone or in statement II alone are sufficient to answer the question
• C. If the data given in both statements I and II together are not sufficient to answer the question
• D. If the data in both statements I and II together are necessary to answer the question.

Answer 1

The correct option is D

If the data in both statements I and II together are necessary to answer the question.

As given in the question, M + N +O = 50 yr On combining Statements I and II, we get N = 15 yr So, both statements are required to answer the question.