B.Math - crossing the river
Source:
June 17, 2012
calculusnumber theory theorems
Problem Statement
You are standing at the edge of a river which is km wide. You have to go to your camp on the opposite bank . The distance to the camp from the point on the opposite bank directly across you is km . You can swim at km/hr and walk at km-hr . What is the shortest time you will take to reach your camp?(Ignore the speed of the river and assume that the river banks are straight and parallel).