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1. |
A is 40% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 25 days ? 0 |
A. | 98/12 days |
B. | 175/12 days |
C. | 186/12 days |
D. | 12/175 days |
Answer» C. 186/12 days | |