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A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in : | |
A. | 15 days [Wrong Answer] |
B. | 20 days [Wrong Answer] |
C. | 25 days [Correct Answer] |
D. | 30 days [Wrong Answer] |