

MCQOPTIONS
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1. |
The average age of P, Q, R, and S is 30 years. How old is R?I. The sum of ages of P and R is 60 years.II. S is 10 years younger than R. |
A. | I alone sufficient while II alone not sufficient to answer |
B. | II alone sufficient while I alone not sufficient to answer |
C. | Either I or II alone sufficient to answer |
D. | Both I and II are not sufficient to answer |
Answer» E. | |