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10 May, 23:00

The age of father is 4nyears. If the age of his daughter is (2n-9) years. find their total age.

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  1. 11 May, 02:39
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    4n + (2n-9)

    4n+2n-9

    6n-9 = the total age

    6n=9

    divide by 6 both sides.

    n=9/6

    n=1.5 years.

    substitute the value of n in the age of the father and the daughter.

    Age of father=4*1.5

    6years.

    Age of Daughter = (2*1.5) - 9

    3-9

    =-6 years

    Total age

    6-6=0
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