Source: Revised GRE PDF 2nd Ed. Section 6; #10 (p. 89)

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Working at their respective constant rates, machine I

Working at their respective constant rates, machine I makes 240 copies in 8 minutes and machine II makes 240 copies in 5 minutes. At these rates, how many more copies does machine II make in 4 minutes than machine I makes in 6 minutes? 10, 12, 15, 20, 24

1 Explanation

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Gravatar Chris Lele, Magoosh Tutor

Sep 27, 2012 • Comment

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