Question

If now Jenny if twice as old as Leo, and 5 years ago she was three times as old as he was, how old are they now?

Answer 1

now, jenny is 20, and leo is 10

5 years ago, leo was 5, and jenny was 15. 5x3+15, meaning she was 3 times older than him. now, hes 10, and 10x2 is 20.