Question

A man is four times as old as his son. After 20 years, he will be twice as old as his son at that time. Find their present ages.​

Answer 1

Let Son's age =x and Man's age =4x

After 16 years,

2(x+16)=4x+16

2x+32=4x+16

16=2x

x=8 years

∴ Son's age =8 years and Man's age =32 years.