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1. |
A can do half the work in one day where as B can do it full. B can also do half the work of C in one day. Ratio in their efficiency will be? |
A. | 4:2:1 |
B. | 2:4:1 |
C. | 2:1:4 |
D. | 1:2:4 |
Answer» E. | |