Question

Pls answer my question which is
A man is 20 year elder to his son. After 10 years his age becomes twice the age of his son. Find the present age
Pls send the answer to this question

Answer 1

let the age of his son = x
then the age of man = x+20
after 10 years
the age of Man is twice of the age of his son
then x+ 20 + 10 = 2(x+10)
x+ 30 = 2x + 20
30-20 = 2x -x
10 = x
the present age of man is 10 + 20 = 30years

the present age of his son is 10years


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