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You can run at a speed of 5 km/hr and swim at a speed of 3...

You can run at a speed of 5 km/hr and swim at a speed of 3 km/hr and you are located on the shore, 8 km east of an island that is 1 km north of the shoreline. How far (km) should you run west, and then swim, to minimize the time needed to reach the island

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