Subject
Quantitative Aptitude
Topic
Time and Work
Three pipes A, B and C can fill a cistern in 10, 12 and 15 hours, respectively, while working alone. If all the three pipes are opened together, the times taken to fill the cistern will be
Three pipes A, B and C can fill a cistern in 10, 12 and 15 hours, respectively, while working alone. If all the three pipes are opened together, the times taken to fill the cistern will be
ক)
4 hoursখ)
6 hoursগ)
7 hoursঘ)
5 hoursঙ)
None of theseExplanation
Since, three pipes A, B and C can fill a cistern in 10, 12 and 15 hours ∴ Part of the tank filled by Pipe A in 1 hour = 1/10 ∴ Part of the tank filled by Pipe B in 1 hour = 1/12 ∴ Part of the tank filled by Pipe C in 1 hour = 1/15 ∴ Part of the tank filled by all three pipes in 1 hour ∴ Time taken to fill the cistern =4/1=4 hoursRelated questions
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