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Reported Question / Answer
Q.) One pipe can fill a drum in 15 minutes. Another pipe at the bottom of the drum can empty it in 30 minutes. When both the pipes are opened, then how long will it take to fill the drum?
1)
15 minutes
2)
20 minutes
3)
40 minutes
4)
30 minutes
5)
NULL
Answer :
4
Thank you for reporting wrong Question / Answer / Options
We look forward to your suggestions and feedback.
Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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