Question 300704
let sue's age be x

tom's age will be 2x

2 years ago sue was x-2 years
tom was 2x-2 years

At that time tom was thrice as old as sue

3(x-2) = 2x-2

3x-6 = 2x-2

x= 6-2

x=4 which is sue's age

tom is 2x = 8 years