

MCQOPTIONS
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1. |
C can do a work alone in 120 days. B is twice as efficient as C and A is thrice as efficient as B. In how many days can they work Finish together? |
A. | 16.67 |
B. | 13.33 |
C. | 12.5 |
D. | 15 |
Answer» C. 12.5 | |