MCQOPTIONS
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| 1. |
4 workers working 6 hours per day can finish painting a wall in 21 days. If 7 workers work for 4 hours per day, in how many days will they be able to finish the same work? |
| A. | 32 |
| B. | 24 |
| C. | 18 |
| D. | 28 |
| Answer» D. 28 | |