Aaron's father is nine times as old as he is. One year ago, he was two years more than eleven as old as Aaron. Find Aaron's present age.

Answer 1

Aaron ---- x
his dad --- 9x

One year ago:
Aaron --- x-1
his dad --- 9x-1

9x-1 = 11(x-1) + 2
9x - 1 = 11x - 11 + 2
8 = 2x
x = 4

Aaron is 4
dad is 36

one year ago
Aaron -- 3
dad ---- 35 ---> was he 2 more than 11 times 3 ??
YES