Question 849858
<pre>
1200km per 3hrs

can be written as 1200k over 3hr

1200km
------
 3hr

then you can separate the numbers from the words like this

1200  km
---- ----
  3   hr
                               <u>  400</u>
Then divide 1200 by 3 and get 3)1200

So the answer is

400 km/h

Edwin</pre>