MCQOPTIONS
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| 1. |
A alone can do a piece of work in 20 days while B takes 16 days to do it by himself. It takes them 8 days to complete the work together with C. If C and D can work in 60 days, then how many days will D need to complete the work by himself? |
| A. | 252 |
| B. | 225 |
| C. | 240 |
| D. | 270 |
| Answer» D. 270 | |