Question
It takes Machine X and Machine B 50 minutes to print a total of 2250 copies of business cards. Machine X can print 20 copies of business cards in one minute. How many copies of business cards can Machine Y print per minute?
2 m

Click button first when a symbol is required. X

It takes Machine X and Machine B 50 minutes to print a total of 2250 copies of business cards. Machine X can print 20 copies of business cards in one minute. How many copies of business cards can Machine Y print per minute?