SOLUTION: If 15 boys working independently and at the same rate can assemble 30 machines in an hour, How many machines would 48 boys working independently and at the same rate assemble in 40
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Question 1054030: If 15 boys working independently and at the same rate can assemble 30 machines in an hour, How many machines would 48 boys working independently and at the same rate assemble in 40 minutes? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! 15 boys take 1 hr to assemble 30 machines
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15/30 boys take 1 hr to assemble 30/30 machines
1/2 boy take 1 hr to assemble 1 machine
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1 boy takes 1 hr to assemble 2 machines
48 boys take 1 hr to assemble 96 machines
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Note that 40 min = 2/3 hr
48 boys take 2/3 hr to assemble (2/3)*96 machines
48 boys take 40 min to assemble 64 machines
