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Jim, painting alone for 8 hours, completes painting part of

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Jim, painting alone for 8 hours, completes painting part of a trailer. Harry, painting alone for 2 hours, completes painting the rest of the trailer. If Harry would have painted the whole trailer on his own, how long would it have taken him to complete his task.

(1) Jim paints twice as much of the trailer in 8 hours as harry does in 2 hours.
(2) Jim paints 1/12 of the trailer in 1 hour.

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