One pump can fill a gas tank in 6 hours. With a second pump working simultaneously, the
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One pump can fill a gas tank in 6 hours. With a second pump working simultaneously, the tank can be filled in 4 hours. How long would it take the second pump to fill the tank operating alone?
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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