Mathematics · Time and Work
Three pipes m, n and p can fill a tank separately in 4.5, 5 and 10.2 hours, respectively. Find the time taken by all the three pipes to fill the tank when they are opened together. (Round off to two decimal places.)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.42 hours
- 21.36 hours
- 31.92 hours✓
- 42.45 hours
Correct answer
1.92 hours
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