Mathematics
Medium
Question
Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled?
A
2
B
2.5
C
3
✓ Official correct answer
D
3.5
Community credibility
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A
2
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B
2.5
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C
3
No member explanations yet for this option.
D
3.5
No member explanations yet for this option.