Multiple Choice Questions on The ratio of age of Krish and her mother is 5 12 and difference of their ages is 21 What will b........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The ratio of age of Krish and her mother is 5 12 and difference of their ages is 21 What will b...........

Quantitative Aptitude ( CCS) Ratio, Proportion
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    The ratio of age of Krish  and her mother is 5:12 and difference of their ages is 21. What will be the ratio of their ages after 3 years ?

     

    7:15
     

    Incorrect Answer

    11:5
     

    Incorrect Answer

    13:7
     

    Incorrect Answer

    6:13

    Correct Answer
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    Explanation:

    12x-5x =7x = 21
    X=21/7 =3
    Present ratio = 15:36
    After 3 years = 18:39 = 6:13

    By: Sandeep Dubey
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