SOLUTION: Professor Harvan started work when he was 15. He spent 1/4 of his working life as a pro ball player, then 1/5 working as an umpire, and 1/3 working for iron pigs. He has also spent

Algebra ->  Finance -> SOLUTION: Professor Harvan started work when he was 15. He spent 1/4 of his working life as a pro ball player, then 1/5 working as an umpire, and 1/3 working for iron pigs. He has also spent      Log On


   

Question 1128529: Professor Harvan started work when he was 15. He spent 1/4 of his working life as a pro ball player, then 1/5 working as an umpire, and 1/3 working for iron pigs. He has also spent the last 13 years working as a teacher. How old is Professor Harvan
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
W, number of years of his working life.

W%2F4%2BW%2F5%2BW%2F3%2B13=W

Solve for W, and then compute 15+W.

W-W%2F4-W%2F5-W%2F3=13
60W-15W-12W-20W=13%2A60
13W=13%2A60
W=60

60%2B15=highlight%2875%29