Question 1096006
<br>Another perfectly valid solution from tutor ikleyn....  But here is a different method which, if you understand it, makes the work easier.<br>
The key idea for this method is that, if the ratio of the speeds is a:b, and the distances are the same, then the ratio of times is b:a.<br>
In this problem, the ratio of the speeds is 180:120, or 3:2; that means the ratio of times is 2:3.<br>
A total of 5 hours, in the ratio 2:3, then the times are 2 hours and 3 hours.<br>
Then you can get the distance either from 180*2 = 360 or from 120*3 = 360.