Question

Tom is 4 years older than Jerry. Nine years ago, Tom was 5 times as old as Jerry was then. How old is each now

Answer 1

Suppose Tom's age is :x
Jerry' age be: y

x = 4 + y ---------1

Nine years ago, tom was (x-9) and Jerry was(y-9),

So,

x - 9 = 5(y - 9)

4 + y - 9 = 5y - 45

4y = 40

Calculate y and then x..

Answer 2

thx