Question

On which date in October was Sibal born ?

Statement I. Sibal's friend remembers that he was born before the 19${}^{th}$ but after 15${}^{th}$ .

Statement II. Sibal's brother remembers that he was born before the 17${}^{th}$ but after 12${}^{th}$ .

• 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

From I, we conclude that Sibal was born on any one of the dates among 16${}^{th}$ ,17${}^{th}$ and 18${}^{th}$.

From II, we conclude that Sibal was born on any one of the dates among 13${}^{th}$,14${}^{th}$ , 15${}^{th}$ and 16${}^{th}$.

Thus, from both I and II, we conclude that Sibal was born on 16${}^{th}$October.