GRE
Exam
Numerical Ability
Pipes and Cistern
14. A 1,500-gallon tank contains 200 gallons of water. Water begins to run into the tank at the rate of 75 gallons per hour. When will the tank be full but not overflowing?
a. 7 hours, 8 minutes
b. 17 hours, 20 minutes
c. 20 hours
d. 22 hours, 40 minutes
Read Solution (Total 3)
-
- The 1500 gallon tank already contains 200 gallons of water.
So the effective capacity of water to be filled is 1300 gallons.
Thus the answer is b.17 hours, 20 minutes. - 9 years agoHelpfull: Yes(2) No(0)
- 75*20=1500
- 9 years agoHelpfull: Yes(0) No(3)
- 20hours
1500/75=20 - 9 years agoHelpfull: Yes(0) No(2)
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