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3. The boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours, it can go40 km upstream and 55 km downstream. Determine the speed of stream and that of theboat in still water. |
| Answer» 3. The boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours, it can go40 km upstream and 55 km downstream. Determine the speed of stream and that of theboat in still water. | |