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SSC Sample Paper SSC (Group-C) Sample Test Paper-1

  • question_answer
    The average age of a family with 5 members is 28 years. If one of the members of age 20 years is excluded, the average age of the family becomes

    A)  25 years

    B)  20 years

    C)  30 years  

    D)  24 years

    Correct Answer: C

    Solution :

     Sum of the ages of 4 members of family = (28\[\times \]5 - 20) years = (140 - 20) years =120 years \[\therefore \] Required average = \[\frac{120}{4}\]= 30 years


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