Question
It takes Machine C and Machine B 40 minutes to print a total of 3000 copies of flyers. Machine C can print 35 copies of flyers in one minute. How many copies of flyers can Machine D print per minute?
2 m

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It takes Machine C and Machine B 40 minutes to print a total of 3000 copies of flyers. Machine C can print 35 copies of flyers in one minute. How many copies of flyers can Machine D print per minute?