SOLUTION: 6) Joe can complete his yard work in 3 hours. If his son helps it will only take 2 hours working together. How long would the yard work take if is son was working alone?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: 6) Joe can complete his yard work in 3 hours. If his son helps it will only take 2 hours working together. How long would the yard work take if is son was working alone?       Log On


   

Question 763080: 6) Joe can complete his yard work in 3 hours. If his son helps it will only take 2 hours working together. How long would the yard work take if is son was working alone?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
1/3 + 1/x = 1/2 Rates
1/x = 1/2 - 1/3
Common denominator = 6x
6 = 3x - 2x
6 = x
So, the son would take 6hrs
to do yard work.