Question 30092
Let the distance be x.
1hour and 20 minutes = 1 1/3.--->4/3 
Equation:

*[tex \frac{x}{6}+\frac{x}{10}=\frac{4}{3}]
<pre><b>Common multiple is 30
{{{30(x/6)+30(x/10)=30(4/3)}}}
5(x)+3(x)=10(4)
5x+3x=40
8x=40
x=5


<font color = brown>Hence, she traveled 5km.</font>
Paul.