Mathematics · Time and Work
A, B and C can separately complete a work in 20, 25 and 30 days, respectively. If A works on the first day alone, B on the second day alone and C on the third day alone, and this sequence continues, in how many days will the entire work be finished?
- 124 4 15✓
- 225 1 75
- 324 1 75
- 425 4 15
Correct answer
24 4 15
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