Mathematics · Time and Work
Three taps A, B and C can fill a tank in 10, 18 and 6 hours, respectively. If A is open all the time and B and C are open for one hour each alternatively, starting with B, the tank will be full in:
- 1512 hours
- 26 hours
- 35 hours✓
- 4612 hours
Correct answer
5 hours
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