1 . A, B and C started a job which they can complete in 2 days. B can do the job in 5 days and C can do it in 4 days. After working for 1 day, both B and C left. How long would it take A to complete the rest of the job?
- A. 20 days
- B. 30 days
- C. 4 days
- D. 10 days
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