Problema Solution
A boat travels 6 km upstream and 6 km back. The time for the round trip is 3 hours. The speed of the stream is 5 km per hour. What is the speed of the boat in still water?
Answer provided by our tutors
6/(x-5)+6/(x+5)=3
12x=3
x=3/12 kph
speed of boat in still water is 0.25 kph