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1. |
4 skilled workers can dig a pond in 8 days, whereas it takes 8 unskilled workers 12 days to dig it. How many days will it take 3 skilled and 15 unskilled workers to dig such a pond? |
A. | 4 |
B. | 3 |
C. | 2 |
D. | 5 |
Answer» B. 3 | |