Mathematics · Time and Work
Pipe 'A' takes 30 hours to fill a tank, while pipe 'B' takes 10 hours less than pipe 'A' to fill it. Pipe 'A' and 'B' are opened together, and every alternate hour, outlet pipe 'C' is also opened (i.e., 1st hour pipes 'A' and 'B' are opened; 2nd hour pipes 'A', 'B', and 'C' are opened; 3rd hour only pipes 'A' and 'B' are opened, and so on). If pipe 'C' takes 40 hours to empty the tank completely, find the total time taken to fill the tank in this manner.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112.1 hours
- 226.1 hours
- 319.1 hours
- 416.1 hours✓
Correct answer
16.1 hours
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