<PRE><B>Question 286279</B>
Jim can paint a room in 3 hours. Jane can paint the same room in 5 hours. How long will it take if they work together?
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Jim rate: 1/3 room/hr
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Jane rate: 1/5 room/hr
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Together rate: 1/x room/hr
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Equation:
rate + rate = together rate:
1/3 + 1/5 = 1/x
(8/15) = 1/x
x = 15/8
x = 1 (7/8) hrs (time to do the job together)
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Cheers,
Stan H.
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