Mathematics · Time and Work
Three pipes A, B, and C can fill a tank in 5 hours, 8 hours, and 12 hours, respectively. If all the pipes are opened at the same time, then the time taken to fill the tank is:
- 12 22 49 hours✓
- 23 22 49 hours
- 34 22 49 hours
- 45 49 hours
Correct answer
2 22 49 hours
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