SOLUTION: 30 men can paint an estate in 48 hours. after working for 20 hours, 6 men left. how much longer did the painting take?
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Question 904980: 30 men can paint an estate in 48 hours. after working for 20 hours, 6 men left. how much longer did the painting take?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
30*48= 1440 man hours needed
30*20 = 600 man hours used
30*48-30*20= 840 more work to be finished
30-6=24 men available
840/24= 35 hours left
It would have taken 28 hours with all 30 men.
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