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

    Question

    The average age of the husband, wife, and their child 3

    years ago was 24 years and that of the Wife and the child 4 years ago was 19 years. The present age of the Husband is:
    A 37 years Correct Answer Incorrect Answer
    B 35 years Correct Answer Incorrect Answer
    C 30 years Correct Answer Incorrect Answer
    D 34 years Correct Answer Incorrect Answer

    Solution

    The average age of (husband, wife, child) before 3 years=24 Total age of (husband, wife, child) before 3 years=24×3=72 Total age of (husband, wife, child) present =72+9=81 years. The average age of husband and child before 4 years=19 years Total age of Wife and child before in present = (19×2) +8 = 46 years  so now the age of the Husband= is 81-46=35 years

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