Multiple Choice Questions on The ages of P Q and R together are 57 years Sis thrice as old as P and R is 12 years older than P Th........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The ages of P Q and R together are 57 years Sis thrice as old as P and R is 12 years older than P Th...........

Quantitative Aptitude ( CCS) Problems based on Ages
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    The ages of P, Q and R together are 57 years. Sis thrice as old as P and R is 12 years older than P. Then, the difference between ages Q and R is?

    11yrs

    Incorrect Answer

    6yrs

    Correct Answer

    8yrs

    Incorrect Answer

    4yrs

    Incorrect Answer
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    Explanation:

    Solution:
    Let P’s age = X
    R 12 yrs older than P so R’s age = x+12
    Q is thrice as old as P so Q’s age = 3x
    x + (x+12) + 3x = 57
    => 5x = 45
    x = 9
    P’s age = 9
    Q’s age = 3x = 27
    R’s age = x+12 = 21
    Q-R=27-21=6yrs.

    By: Pranav Gupta
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