Three identical pumps, pumping at the same constant rate, can remove a total of $1,250$ gallons of water from a tank

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Wed Dec 16, 2020 3:27 am

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Three identical pumps, pumping at the same constant rate, can remove a total of $1,250$ gallons of water from a tank in $1$ hour. With $X$ of these pumps, $15,000$ gallons of water could be removed in $3$ hours. What is the value of $X?$

A. 9
B. 12
C. 15
D. 18
E. 21

Answer: B

Source: EMPOWERgmat

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Source: Beat The GMAT — Problem Solving | Wed Dec 16, 2020 3:27 am

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