Posted by **Kelly** on Thursday, January 26, 2012 at 3:19pm.

Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 12 bikes in 6 hours. Working together how many hours will it take them to make 12 bikes?

Please explain showing steps so I can learn it. I don't just need the answer. Thanks!

PS I originally typed the question wrong now it's correct.

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