Question

a father is 20 years older than his son after 5 years he will be 3 times in age to his son then their present age is​

Answer 1

Step-by-step explanation:

Let the present age of the son be x.

so, father's present age will be x+20.

After five years,

son's age= (x+5)

father's age= 3(x+5)= 3x+15.

also father's age after 5 years= x+20+5= x+25.

so, 3x+15= x+25.

or, 3x-x= 25-15.

or, 2x= 10.

or, x= 10/2= 5.

so, father's present age will be x+20= 5+20= 25 years.

and, son's present age will be x= 5 years.

Answer 2

Step-by-step explanation:

x=25 3(x+5) x+25=3x+15 25_15 =3x _ x