GRE Question of the Day (April 6)

Math

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

A) 10

B) 12

C) 15

D) 20

E) 24

Correct Answer - B - (click and drag your mouse to see the answer)

Question Discussion & Explanation
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