A father is three times as old as his son


Asked by admin @ in Math viewed by 304 People


a father is three times as old as his son. in 12 years time, he will be twice as old as his son. find the present age of father and son.

Answered by admin @



let the boy be x

Father =3x

given \\ x + 12 = 2(x + 12) \\ x + 12 = 2x + 24 \\

or

2x + 24 = 3x + 12 \\  - 12 + 24 = 3x - 2x \\  =  > 12 = x

father =3x

3x = 3 \times 12 = 36

present age of father is 36 and son is 12


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