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21 May 2025, 00:30
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
84% (00:45) correct
16%
(00:55)
wrong
based on 89
sessions
History
Date
Time
Result
Not Attempted Yet
An empty pool is being filled by hose t. How long will it take hose t to fill the pool?
(1) Hose t and hose j together can fill a pool in 6 hours.
(2) Hose t fills two-thirds of the pool in 12 hours.
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
(1) Hose t and hose j together can fill a pool in 6 hours.
(2) Hose t fills two-thirds of the pool in 12 hours.
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
21 May 2025, 00:57
Kudos
Bookmarks
Need rate of fill for hose t
S1
Hose t and hose j together can fill a pool in 6 hours.
No way to get rate of fill for hose t
Insufficient
S2
Hose t fills two-thirds of the pool in 12 hours
2/3 = R*12
R =1/18
It will take 18 hrs to fill
Sufficient
Answer B
S1
Hose t and hose j together can fill a pool in 6 hours.
No way to get rate of fill for hose t
Insufficient
S2
Hose t fills two-thirds of the pool in 12 hours
2/3 = R*12
R =1/18
It will take 18 hrs to fill
Sufficient
Answer B
Bunuel
21 May 2025, 02:57
Kudos
Bookmarks
We require the time for hose t alone.
Answer: B
| Statement 1 | t and j: 6 hours together | Not enough, need j's rate |
| Statement 2 | t: 2/3 pool in 12 hours | Enough, can find t's time |
| Statements 1 + 2 | Combined info | S2 alone enough, S1 not needed |
Answer: B
