GAT Subject
Engineering
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11. | Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is? | |
A. | 60 gallons | |
B. | 100 gallons | |
C. | 120 gallons | |
D. | 180 gallons | |