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  1. The average age of 7 member of Patel's family is 25 year. The average age of the same family 3 year ago was
    1. 21 year
    2. 22 year
    3. 25 year
    4. none of these
Correct Option: B

Present average age of family
= 25 year
3 year ago average of family
= 25 - 3 = 22 years

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