Question

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 the father and son​

Answer 1

let,

the present age of father be x

and,

the present age of son be y

now

by ATGC

3x +2y = 12 ___1.

2x + 3y = 6____2.

put the value y=0 in eq__2.

2x + 3(0) = 6

2x= 6-0

x=6-0/ 2

x=3

put y=1

2x + 3(1) =6

2x = 6-3

x=6-3/2

x=3/2

put y=0 in eq___1.

3x+2y=12

3x +2(0)=12

3x= 12-0

x = 12-0/3

x=4