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Question

A swimmer can swim in still water with a speed of 3 km/hr. Rate of flow of river is 6 km/hr. If the swimmer swims at angle 60o with flow of river, find speed of swimmer as seen by person, who is moving in a boat in the river.
  1. 9 km/hr
  2. 3 km/hr
  3. 7 km/hr
  4. 2 km/hr


Solution

The correct option is B 3 km/hr
Swimmer speed as seen by tube in river is same as speed in still water. 

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