Question

Michael is 3 times as old as Brandon. 18 years ago, Michael was 9 times as old as Brandon. How old is Michael now?

Answer 1

Answer:

Let Brandon be b. Then Michael is 3b. So:

3b-18=9(b-18)

3b-18=9b-162

6b=144

b=24

3b=72

Brandon is 24, Michael is 72.