Question 1055523
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I need the equation for the following problem: My motor boat normally travels at 24 kilometers per hour in still water. 
One day I traveled 36 kilometers against a constant current in a river. If I had traveled with the current, 
I would have traveled 48 km in the same time. How fast was the current?
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<pre>
Your equation is

{{{36/(24-v)}}} = {{{48/(24+v)}}}.

The left side is the time to travel 36 kilometers against the constant current in a river.

The right side is the time to travel 48 kilometers with the constant current in a river.

"v" is the current speed.
</pre>

There are similar fully solved similar problems on upstream and downstream round trips with detailed solutions in the lessons 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/word/travel/Wind-and-Current-problems.lesson>Wind and Current problems</A> 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/word/travel/More-problems-on-upstream-and-downstream-round-trips.lesson>More problems on upstream and downstream round trips</A> 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/word/travel/Selected-problems-from-the-archive-on-a-boat-floating-Upstream-and-Downstream.lesson>Selected problems from the archive on the boat floating Upstream and Downstream</A> 


Read them attentively and learn how to solve this type of problems once and for all.


Also, you have this free of charge online textbook in ALGEBRA-I in this site

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson>ALGEBRA-I - YOUR ONLINE TEXTBOOK</A>.


The referred lessons are the part of this textbook under the section "<U>Word problems</U>", the topic "<U>Travel and Distance problems</U>".