SOLUTION: If Vinny can build a sandbox three times as fast as Eric, and they can build a sandbox together in 12 hours, how long would it take each on them to build a sandbox alone?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If Vinny can build a sandbox three times as fast as Eric, and they can build a sandbox together in 12 hours, how long would it take each on them to build a sandbox alone?      Log On


   



Question 863168: If Vinny can build a sandbox three times as fast as Eric, and they can build a sandbox together in 12 hours, how long would it take each on them to build a sandbox alone?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/x+1/3x=1/12
3/3x+1/3x=1/12
4/3x=1/12
Eric 3x=48
Vinny x=16