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

    Question

    Present age of ‘K’ is 70% more than that of ‘L’.

    10 years ago, ‘K’ was 2.2 times as old as ‘L’. Find the present age of ‘L’.
    A 18 years Correct Answer Incorrect Answer
    B 16 years Correct Answer Incorrect Answer
    C 20 years Correct Answer Incorrect Answer
    D 24 years Correct Answer Incorrect Answer

    Solution

    Let the present age of ‘L’ be ‘x’ years
    Therefore, present age of ‘K’ = 1.7x years
    ATQ;
    (1.7x – 10) = 2.2 × (x – 10)
    Or, 1.7x – 10 = 2.2x – 22
    Or, 12 = 0.5x
    Or, x = 24
    Therefore, present age of ‘L’ = 24 years

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