- A 23
- B 18
- C 15
- D 14
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Answer:
B
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If the combined work rate of A, B, and C is 1/8 of the task per day,
and they work together for 10 days, completing 5/8 of the task,
the remaining work is 3/8 of the task.
The work rate of A is 1/24 of the task per day, so it will take A 18 days to complete the remaining work.
Therefore, A will take a total of 18 days to finish the work after B and C leave.
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