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83% (01:12) correct
17%
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wrong
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At a water-treatment facility, a pump was used to fill an empty storage tank. If the pump operated at a constant rate throughout the process, how many minutes did it take the pump to fill the tank?
(1) If the pump’s flow rate had been 25% greater, the tank would have been filled 16 minutes sooner.
(2) If the pump’s flow rate had been 20% lower, the tank would have taken 20 minutes longer to fill.
The OA will be automatically revealed on Sunday 26th of April 2026 07:00:40 PM Pacific Time Zone
(1) If the pump’s flow rate had been 25% greater, the tank would have been filled 16 minutes sooner.
(2) If the pump’s flow rate had been 20% lower, the tank would have taken 20 minutes longer to fill.
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The OA will be automatically revealed on Sunday 26th of April 2026 07:00:40 PM Pacific Time Zone
23 Apr 2026, 22:56
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IMO D.
Statement 1:
This is typical of distance/rate problem.
When one goes up by some amount in ratio form, other comes down by its reciprocal.
The decrease in the ratio is the sooner value:
If flow rate = 5/4x ,Time taken = 4/5x.
1/5x = 16.
x=80.
SUFFICIENT.
Statement 2:
Similar steps as above and we get
x = 80 again.
SUFFICIENT.
Answer: Option D
Statement 1:
This is typical of distance/rate problem.
When one goes up by some amount in ratio form, other comes down by its reciprocal.
The decrease in the ratio is the sooner value:
If flow rate = 5/4x ,Time taken = 4/5x.
1/5x = 16.
x=80.
SUFFICIENT.
Statement 2:
Similar steps as above and we get
x = 80 again.
SUFFICIENT.
Answer: Option D
Bunuel
It didn't say if flow rate is 25% greater take 16 minute it says it take 16 minute sooner and same statement two so using both the statement we would get the answer from 1st statement work = 5/4R(T-16)= RT we get T
same from
from second 4/5R(T+20) =RT we get actual time So D is the Answer
same from
from second 4/5R(T+20) =RT we get actual time So D is the Answer
Adit_
