

MCQOPTIONS
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1. |
A, B and C can do a job working alone in 6, 9 and 18 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to complete the remainder of the job? |
A. | 9 |
B. | 6 |
C. | 12 |
D. | 10 |
Answer» D. 10 | |