SOLUTION: If a machine A makes 1000 gidgets in 4 hours, and machine B makes 1000 gidgets in 8 hours, how long will it take both machines to make 1000 gidgets??
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-> SOLUTION: If a machine A makes 1000 gidgets in 4 hours, and machine B makes 1000 gidgets in 8 hours, how long will it take both machines to make 1000 gidgets??
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Question 245846: If a machine A makes 1000 gidgets in 4 hours, and machine B makes 1000 gidgets in 8 hours, how long will it take both machines to make 1000 gidgets?? Found 2 solutions by nerdybill, Alan3354:Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! If a machine A makes 1000 gidgets in 4 hours, and machine B makes 1000 gidgets in 8 hours, how long will it take both machines to make 1000 gidgets??
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Let x = time it takes for both machines to make 1000 gidgets
then
x [1000/4 + 1000/8] = 1000
Multiplying both sides by 8:
x [2000 + 1000] = 8000
x [3000] = 8000
x = 8000/3000
x = 8/3 hours
or
x = 2 hours and 40 minutes
