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1 vote
David assembles 12 circuit boards in 255 minutes. Amy assembles 9 circuit boards in 170 minutes. Who works at a faster rate?

2 Answers

3 votes
It would be Amy, because Amy does about 18.8 boards per min and David does about 18.75 boards per min.
User Wschopohl
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4 votes
I think Amy works at a faster rate.
User Maurizio Cucchiara
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