Question: 
A certain river has a current of 3 miles per hour. A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. What is the speed of the boat in still water?
6 miles per hour
12 miles per hour
3 miles per hour
9 miles per hour
9 miles per hour
Answer: 
9 miles per hour
Last Updated: 
08/11/2021 - 03:30