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https://preprise.com/the-speed-of-a-boat-in-a-river-is-20-km-per-hour-and-the-speed-of-another-boat-is-23-km-per-hour-they-travel-in-the-same-direction-from-the-same-place-at-the-same-time-the-distance-between-the-boats/
The speed of a boat in a river is 20 km per hour and the speed of another boat is 23 km per hour. They travel in the same direction from the same place at the same time. The distance between the boats after three and half hours is-
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