SOLUTION: john takes 3 hours to pain a room. if tim and john take half an hour to pain the same room, how long does it take for tim to paint the room alone?
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Question 1021350: john takes 3 hours to pain a room. if tim and john take half an hour to pain the same room, how long does it take for tim to paint the room alone? Answer by josgarithmetic(39620) (Show Source):
The rate of both together is the sum of their individual rates, and the unit is ROOM per HOUR. x is the number of hours for Tim to paint the room (one room).
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