Question: A boat travels 60 km downstream in 3 hours. If the speed of the current is 6 km/h, what is the speed of the boat in still water?
Options:
Correct Answer: 20 km/h
Solution:
Speed downstream = Distance/Time = 60 km / 3 h = 20 km/h. Speed of boat in still water = Speed downstream - Speed of current = 20 km/h - 6 km/h = 14 km/h.