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Predict the time needed to deliver 72 papers at a rate of 9 papers in 18 min
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Jan 23, 2019
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Predict the time needed to deliver 72 papers at a rate of 9 papers in 18 min
Mathematics
middle-school
Nagarajan M
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Notice that the number of minutes is double the number of papers. So, 72 papers will take 72*2=144 minutes to deliver. 144 minutes = 2 hours and 24 minutes.
Jverdi
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Jan 28, 2019
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