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Mathematics, 12.08.2020 09:01 dreamer197

Helen has an old laser printer that can print 900 pages in 1.5 hours. If the speed of printing remains constant, how long will it take her to print a book of 600 pages? Express your answer in hours.

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Helen has an old laser printer that can print 900 pages in 1.5 hours. If the speed of printing remai...
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