Question
It takes Machine T and Machine B 15 minutes to print a total of 855 copies of newsletters. Machine T can print 24 copies of newsletters in one minute. How many copies of newsletters can Machine U print per minute?
2 m

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It takes Machine T and Machine B 15 minutes to print a total of 855 copies of newsletters. Machine T can print 24 copies of newsletters in one minute. How many copies of newsletters can Machine U print per minute?