An oil tank has two pipes connected to it. If the tank is empty, Pipe A can fill itin 2 hours. If the tank is full, Pipe B can empty it in 3 hours. If both pipes areactivated at the same time when the tank is empty, how many hours will it take forthe tank to be filled to 60% of its capacity?
A. 2.4
B. 3.6
C. 6
D. 60
Answer:B
An oil tank has two pipes connected to it. If the tank is empty, Pipe A can fill itin 2 hours. If the tank is full, Pipe B can empty it in 3 hours. If both pipes areactivated at the same time when the tank is empty, how many hours will it take forthe tank to be filled to 60% of its capacity?
A. 2.4 B. 3.6 C. 6 D. 60
Explanation: B