Question

What is Sudha's present age?
(1) Sudha's present age is five times her son's present age.
(2) Five years ago her age was twenty-five times her son's age that time.

• A. Statement (1) alone is sufficient, but statement (2) alone is not sufficient.
• B. Statement (2) alone is sufficient, but statement (1) alone is not sufficient.
• C. Both statements together are sufficient, but neither statement alone is sufficient.
• D. Statement (1) and (2) together are not sufficient.

Answer 1

Answer: (C)

Both statements together are sufficient, but neither statement alone is sufficient.

(1) $\Rightarrow M=5S$
(2) $\Rightarrow M-5=25(S-5)$
Solving these equations, we get the value of M. Therefore, both statements together are required to answer the question.