SOLUTION: one crew can seal a parking lot in 12 hours and another can seal it in 16 hours. How long will it take to seal the parking lot if the two crews work together?
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-> SOLUTION: one crew can seal a parking lot in 12 hours and another can seal it in 16 hours. How long will it take to seal the parking lot if the two crews work together?
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Question 988653: one crew can seal a parking lot in 12 hours and another can seal it in 16 hours. How long will it take to seal the parking lot if the two crews work together? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! In one hour, one person can seal (1/12) and the other (1/16)
In one hour, both can seal (1/12)+(1/16)=(7/48)
in 48/7 hours (6.857 hours), they can seal it, working together.
