

MCQOPTIONS
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1. |
A, B and C can finish a job working alone in 20, 30 and 60 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to finish the remaining part of the job? |
A. | 60 |
B. | 54 |
C. | 6 |
D. | 27 |
Answer» C. 6 | |