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1. |
A and B together can complete a task in 10 days, B and C can do in 15 days, and C and A together can do it in 12 days. How long will they take to complete the task working together? |
A. | 12 days |
B. | 8 days |
C. | 14 days |
D. | 10 days |
Answer» C. 14 days | |