New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The ratio of age of ‘B’ after 5 years from now and

    age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 50% of the present age of ‘A’. If present age of ‘A’ is 72 years then find the present age of ‘B’.
    A 52 years Correct Answer Incorrect Answer
    B 41 years Correct Answer Incorrect Answer
    C 51 years Correct Answer Incorrect Answer
    D 41 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Present age of ‘C’ = 0.5 × 72 = 36 years 4 years ago from now, age of ‘C’ = 36 – 4 = 32 years 5 years hence from now, age of ‘B’ = 32 × (7/4) = 56 years Present age of ‘B’ = 56 – 5 = 51 years

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