present age:
michael ---- x
max ------- x-5
4 years ago:
michael ---- x-4
max ------- x - 9
x-4 + x-9 = 25
2x = 38
x = 19
Michael is now 19 , and Max is now 14
check: 4 years ago , Michael was 15 and Max was 10
was the sum of their ages at that time 25? YES
Max is 5 years younger than Michael . 4 years ago the sum of their ages was 25. How old are they ?
1 answer
1 answer