SOLUTION: A new high-speed copier works three times as fast as a regular copier. When both copiers are used, they can copy a group of documents in 12 minutes. How long would each copier requ

Question 188567: A new high-speed copier works three times as fast as a regular copier. When both copiers are used, they can copy a group of documents in 12 minutes. How long would each copier require to do the copying alone?
Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!

Take note: RC = 3HC, *High Speed is 3 times faster than Regular

1/RC + 1/HC = 1/Total Minutes, EQN 1

Get LCD to add

, cross multiply
---->
, High Speed Copier
Also,
, Regular Copier
Check, go back EQN 1

Thank you,
Jojo
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