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1. |
A can do a piece of work in 8 days. B and C together can do it in 6 days, while A and C together can do it in 4 days. How many days will B take to do the work alone? |
A. | 20 days |
B. | 16 days |
C. | 24 days |
D. | 10 days |
Answer» D. 10 days | |