|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
10 Apr 2025, 09:33
Kudos
Bookmarks
Rate of Pump A: 960
Rate of Pump C: 1860
Two water pumps, Pump A and Pump B, are pumping water into a partially filled tank, while a third pump, Pump C, is pumping water out of the tank. When all three pumps begin operating simultaneously, the water level in the tank does not change.
If Pump B operates at a rate of 15 liters per second, select for Rate of Pump A, the rate of Pump A in liters per minute and select for Rate of Pump C, the rate of Pump C in liters per minute that would be jointly consistent with the given information. Make only two selections, one in each column.
If Pump B operates at a rate of 15 liters per second, select for Rate of Pump A, the rate of Pump A in liters per minute and select for Rate of Pump C, the rate of Pump C in liters per minute that would be jointly consistent with the given information. Make only two selections, one in each column.
| Rate of Pump A | Rate of Pump C | |
| 960 | ||
| 1440 | ||
| 1860 | ||
| 2280 | ||
| 2700 |
ShowHide Answer
Official Answer
Rate of Pump A: 960
Rate of Pump C: 1860
10 Apr 2025, 09:33
Kudos
Bookmarks
Official Solution:
Since the water level does not change, the sum of the rates of Pump A and Pump B (inflow) must equal the rate of Pump C (outflow).
Pump B pumps at 15 liters per second = 15 * 60 = 900 liters per minute.
Checking the options:
If Pump A = 960 liters per minute, then Pump C must be 960 + 900 = 1860 liters per minute. Both values are in the answer choices. Bingo — we have our match and no need to check anything else!
Correct answer:
Rate of Pump A "960"
Rate of Pump C "1860"
Bunuel
Since the water level does not change, the sum of the rates of Pump A and Pump B (inflow) must equal the rate of Pump C (outflow).
Pump B pumps at 15 liters per second = 15 * 60 = 900 liters per minute.
Checking the options:
If Pump A = 960 liters per minute, then Pump C must be 960 + 900 = 1860 liters per minute. Both values are in the answer choices. Bingo — we have our match and no need to check anything else!
Correct answer:
Rate of Pump A "960"
Rate of Pump C "1860"
