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5 skilled workers can build a wall in 20 days; 8 semi-skilled worker can build a wall in 25days; 10 unskilled workers can build a wall in 30 days, If a team has 2 killed, 6 semi-skilled and 5 unskilled workers, how long will it take to build the wall? | |
A. | 20 days [Wrong Answer] |
B. | 18 days [Wrong Answer] |
C. | 16 days [Wrong Answer] |
D. | 15 days [Correct Answer] |