

MCQOPTIONS
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1. |
A can lay a railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in_________? |
A. | 4 |
B. | 9.6 |
C. | 9 |
D. | 10 |
Answer» C. 9 | |