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                                    A river is flowing from west to east at a speed of 8 m/min.Anan on the south bank of the river, capable of swimming at0 m/min in still water, wants to swim across the river in theshortest time. He should swim in a direction:(a) due north(c) 30° west of north(b)(d)30° east of north60° east of north | 
                            
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Answer»  Given that man's Velocity is 20 m/min.. and river Velocity is 8 m/sec. the direction should be due north . option A here is a solution for similar ques.- answer is a. due north because his reluctant velocity acts towards east and the distance to be covered to reach the other bank increases  | 
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