SOLUTION: Machine A makes 50 records in 2 min, and machine B makes 50 records in 3 min. With both machines working, how long would it take to make 1000 records?

Question 717902: Machine A makes 50 records in 2 min, and machine B makes 50 records in 3 min. With both machines working, how long would it take to make 1000 records?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
This is just combining two rates by addition. Use the rates as records per minute.
50/2 + 50/3 = (50*3+50*2)/6==

Keeping the rate in THAT form will make it easy to find how many minutes for 1000 records. SIMPLE PROPORTION!

....., 24 minutes.
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