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Question 751778: George and Stanley are building a stone fence. They can complete the fence together in 8 hours, and George can complete it is 24 hours working alone. If they work together for 6 hours, then Stanley goes to the pub for a pint, how much longer must George work to finish the fence?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! George and Stanley are building a stone fence. They can complete the fence together in 8 hours, and George can complete it is 24 hours working alone.
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George & Stan together rate::: 1/8 job/hr
George rate::::: 1/24 job/hr
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If they work together for 6 hours, then Stanley goes to the pub for a pint, how much longer must George work to finish the fence?
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6(1/8) + x/24 = 1 job
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3/4 + x/24 = 1
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18 + x = 24
x = 6 hrs. (Time George needs to finish)
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Cheers,
Stan H.
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