Multiple Choice Questions on The ratio between the present ages of A and B is 6 7 If B is 4 years old than A What will be the rat........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The ratio between the present ages of A and B is 6 7 If B is 4 years old than A What will be the rat...........

Quantitative Aptitude ( CCS) Problems based on Ages
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    The ratio between the present ages of A and B is 6:7. If B is 4 years old than A. What will be the ratio of the ages of A and B after 4 years?

    5 : 7

    Incorrect Answer

    7 : 8

    Correct Answer

    8 : 7

    Incorrect Answer

    Data inadequate

    Incorrect Answer
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    Explanation:

    Let A’s age and B’s age be 6X years and 7X years respectively
    Then, 7X – 6X = 4
    X = 4
    Required ratio = (6X + 4) : (7X + 4) = (6*4+4) : (7*4 +4) =28 : 32 = 7 : 8

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