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    Question

    The average age of the husband, wife and their child 4

    years ago was 24 years and that of the husband and the child 5 years ago was 19 years. The present age of the wife is:
    A 34 years Correct Answer Incorrect Answer
    B 36 years Correct Answer Incorrect Answer
    C 37 years Correct Answer Incorrect Answer
    D 30 years Correct Answer Incorrect Answer

    Solution

    The average age of (husband, wife, child) before 4 year=24 Total age of (husband, wife , child) before 4 year=24×3=72 Total age of (husband, wife, child) present =72+12=84 years. The average age of husband and child before 5 years=19 years Total age of husband and child before in present = (19×2)+10=48 years  so now present age of wife = is 84-48=36 years

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