Question

Five friends P, Q, R, S and T are standing in a row facing East. Who is standing at the extreme right end?
I. Only P is between S and T; R is to the immediate right of T.
II. R is between T and Q

• A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone not sufficient to answer the question;
• B. If the data in statement II alone are sufficient to answer the question, while the data in statement I all are not sufficient to answer the question;
• C. If the data in either statement I alone are statement II alone are not sufficient to answer the question;
• D. If the data even in both statements I and II together are not sufficient to answer the question;
• E. If the data in both statements I and II together are necessary to answer the question.

Answer 1

The correct option is E If the data in both statements I and II together are necessary to answer the question.

1. From statement 1, only P is between S and T; R is to the immediate right of T. So, the arrangement is (S, P, T, R).
2. From statement 2, R is between T and Q. So, (T, R, Q) is the arrangement.

• Combining I and II, we get the arrangement as (S, P, T, R, Q). Hence Q is at extreme right. Thus, the data in both statements I and II together are necessary to answer the question.