Question
It takes Machine U and Machine B 30 minutes to print a total of 1380 copies of business cards. Machine U can print 18 copies of business cards in one minute. How many copies of business cards can Machine V print per minute?
2 m

Click button first when a symbol is required. X

It takes Machine U and Machine B 30 minutes to print a total of 1380 copies of business cards. Machine U can print 18 copies of business cards in one minute. How many copies of business cards can Machine V print per minute?