A Boat Travels Upstream (Against the Current) Between Two Points $10$

question 43

Multiple Choice

A boat travels upstream (against the current) between two points on a river $10$ mi apart in $2.5$ hours. The return trip downstream takes only $45$ minutes. What is the boat's speed, and how fast does the current in the river flow?

• A)The speed of the boat is \(4.5\) Mi/h and the speed of the current flow is about \(8.4\) Mi/h
• B)The speed of the boat is \(8.7\) Mi/h and the speed of the current flow is about \(4.7\) Mi/h
• C)The speed of the boat is \(6.7\) Mi/h and the speed of the current flow is about \(8.7\) Mi/h
• D)The speed of the boat is \(5\) Mi/h and the speed of the current flow is about \(4\) Mi/h
• E)The speed of the boat is \(13.7\) Mi/h and the speed of the current flow is about \(6.7\) Mi/h.