SOLUTION: Chad can paint a room in 2 hours. Cassie can paint a room in 3 hours. How long would it take them to paint a room working together?
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Question 956764: Chad can paint a room in 2 hours. Cassie can paint a room in 3 hours. How long would it take them to paint a room working together? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Chad can paint a room in 2 hours. Cassie can paint a room in 3 hours. How long would it take them to paint a room working together?
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Chad rate:: 1/2 job/hr
Cassie rate:: 1/3 job/hr
Together rate:: 1/x job/hr
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Equation:
rate + rate = together rate
1/2 + 1/3 = 1/x
3x + 2x = 6
5x = 6
x = 1 1/5 hr = 1hr 12 min (time to do the job together)
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Cheers,
Stan H.
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