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Pumps A, B and C operate at their respective constant rates. [#permalink]
16 Feb 2006, 10:59
This post was BOOKMARKED
96% (02:38) correct
4% (04:51) wrong based on 63 sessions
Pumps A, B and C operate at their respective constant rates. Pumps A and B operating simultaneously, can fill a certain tank in 6/5 hours; pumps A and C, operating simultaneously can fill the tank in 3/2 hours; and pumps B and C, operating simultaneously can fill the tank in 2 hours. How many hours does it take pumps A, B, and C operating simultaneously to fill the tank.
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