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13 September, 04:51

Amy and Roger both wash windows at a large downtown building. Amy can wash 25 windows in 4 hours. Roger can wash 32 windows in 6 hours. How many windows can they wash together in 12 hours?

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  1. 13 September, 06:55
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    Amy can wash 75 cars in 12 hours, Roger can wash 64 cars in 12 hours.

    so therefore 75+64 = 139

    together they can wash 139 cars in 12 hours
  2. 13 September, 07:58
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    Answer=139 windows

    12:4=3 25*3=75

    12:6=2 32*2=64

    75+64 = 139
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