GRE Problem Solving Question 1450
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Source: XDF
A distillate flows into an empty 64-gallon drum at spout A and out of the drum at spout B. If the rate of flow through A is 2 gallons per hour, how many gallons per hour must flow out at spout B so that the drum is full in exactly 96 hours?
- A 3/8
- B 1/2
- C 5/21
- D 8/3
- E 4/3