A swimmer's speed in the direction of fl...

A swimmer's speed in the direction of flow of river is 16 km/h. Against the direction of flow of river, the swimmer's speed is 8 km/h. The swimmer's speed in still water and the velocity of now of the river respectively are

4 km/h , 12 km/h

12 km/h 12 km/h

4km/h, 4 km/h

12 km/h, 4 km/h

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TARGET PUBLICATION-Motion in a plane-Exercise

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