Question 1164009
<br>
You have received two perfectly good formal algebraic solutions using<br><pre>
          distance
  time = ----------
           speed</pre>
When the times are the same, many problems like this can be solved much more easily using this:<br><pre>
          DIFFERENCE IN distances
  time = -------------------------
           DIFFERENCE IN speeds</pre>
The difference in their speeds was 24mph; the difference in distance traveled was 120 miles.<br>
Therefore, the time driving was 120/24 = 5 hours.<br>
So the distance Allison drove was 5*68 = 340 miles.<br>