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10 Apr 2025, 09:33
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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 |
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Official Answer
Rate of Pump A: 960
Rate of Pump C: 1860
10 Apr 2025, 09:33
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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"
