A motorboat travels 35 km in 2 hours with the current of the river. The same motorboat travels 39 km in 3 hours in a lake. Find the speed of the current.

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Tags
Categories
Ask a Question

Joel Burton asked Nov 14, 2023

154,803 views

26 votes

A motorboat travels 35 km in 2 hours with the current of the river. The same motorboat travels 39 km in 3 hours in a lake. Find the speed of the current.

Mathematics
high-school

Joel Burton asked Nov 14, 2023

by Joel Burton

3.0k points

0 Comments

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Your answer

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

1 Answer

16 votes

Answer:

0.5km/h

Explanation:

Assume lake has no current.

V=distance / time

V=39km / 3h

V=13km/h

In water Assume boat used same power travelling

V=35km / 2h

V= 12.5km/h

Current is the difference 0.5km/h

Raedwulf answered Nov 21, 2023

by Raedwulf

2.8k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Ask a Question

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

1.6m questions

2.0m answers

0 Comments

Your comment on this question:

Your answer

1 Answer

0 Comments

Your comment on this answer:

Other Questions