SOLUTION: 30 workers can construct a bridge in 84 days. After working for 36 days 10 left. How long did it take them to construct the bridge?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: 30 workers can construct a bridge in 84 days. After working for 36 days 10 left. How long did it take them to construct the bridge?       Log On


   

Question 978787: 30 workers can construct a bridge in 84 days. After working for 36 days 10 left. How long did it take them to construct the bridge?

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
30*84=2520 worker days
36*30=1080
2520-1080=1440 workers days left
1440/20=72 more days after the 10 left
36+72=108 days total days spent on the bridge
The question is unclear which you want.
72 or 108