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

    Question

    In 12 years, 'A's age will be three times what it was 20

    years ago. After 12 years, the age ratio between 'A' and 'B' will be 4:5. Currently, the average age of 'A', 'B', and 'C' together is 38 years. Determine the present age of 'C'.
    A 40 years Correct Answer Incorrect Answer
    B 30 years Correct Answer Incorrect Answer
    C 36 years Correct Answer Incorrect Answer
    D 48 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let present age of ‘A’ be ‘a’ years So, 3(a – 20) = a + 12 Or, 3a – 60 = a + 12 Or, 2a = 72 Or, a = 36 Present age of ‘B’ = 5/4 × {36 + 12} – 12 = 60 – 12 = 48 years Present age of ‘C’ = 38 × 3 – 36 – 48 = 30 years

    Practice Next

    Relevant for Exams: