A paddle boat can move at a speed of 2 km/h in still water. The boat is paddled 16 km downstream in a river in the same time it takes to go 8 km upstream. What is the speed of the river?

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question

asked Jun 2, 2018 140k views

4 votes

A paddle boat can move at a speed of 2 km/h in still water. The boat is paddled 16 km downstream in a river in the same time it takes to go 8 km upstream. What is the speed of the river?

Mathematics
college

Comprex asked

by Comprex

7.5k points

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

5 votes

going downstream -

t = 14/(2 + v)

going upstream -

t = 7/(2 - v)

14/(2 + v) = 7/(2 - v)

(2 + v)/2 = 2 - v

v = 2/3km/h

Sovary answered Jun 5, 2018

by Sovary

7.8k points

0 Comments

Please log in or register to add a comment.

Ask a Question

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

Other Questions