

MCQOPTIONS
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1. |
A, B and C can do a job working alone in 10, 15 and 30 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. | 30 |
B. | 18 |
C. | 24 |
D. | 12 |
Answer» D. 12 | |