Solution: At what speed will the boat run against a current to go a given distance most economically?

The cost per hour of running a motor boat is proportional to the cube of the speed. At what speed will the boat run against a current of 8 km/hr in order to go a given distance most economically?

At what speed will the boat run against a current to go a given distance most economically?

Problem Statement: EE Board October 1992

The cost per hour of running a motor boat is proportional to the cube of the speed. At what speed will the boat run against a current of 8 km/hr in order to go a given distance most economically?

Problem Answer:

The speed will the boat run against a current of 8 km/hr in order to go a given distance most economically is 12 kph

Solution:

Online Questions and Answers in Differential Calculus (MAXIMA-MINIMA & TIME RATES)


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