Q3) If a tank is emptied in 5 minutes by a pump that is pumping at a rate of 300 gallons per minute, how long will it take to empty the tank with a pump that will pump at a rate of 500 gallons per minute?

Question

Q3)   If a tank is emptied in 5 minutes by a pump that is pumping at a rate of 300 gallons per minute, how long will it take to empty the tank with a pump that will pump at a rate of 500 gallons per minute?

oobleck · Answer

since volume = rate*time, 300*5 = 500x x = 3 minutes or, 5/3 the speed, so 3/5 the time