Mathematics · Time and Work
A and B working together can finish a task in 10 days. B and C working together can finish the same task in 15 days. A and C working together can finish the task in 20 days. In how many days can A, B, and C, working together, finish this task?
- 111813 days
- 212113 days
- 311913 days
- 412013 days✓
Correct answer
12013 days
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