Question
It takes Machine M and Machine B 30 minutes to print a total of 1560 copies of brochures. Machine M can print 23 copies of brochures in one minute. How many copies of brochures can Machine N print per minute?
2 m

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It takes Machine M and Machine B 30 minutes to print a total of 1560 copies of brochures. Machine M can print 23 copies of brochures in one minute. How many copies of brochures can Machine N print per minute?