Posted by **hannah** on Friday, September 11, 2009 at 5:02pm.

The inside lane in the track is 50m and the outside of the track is 100m

4 lanes are added around the outside of the track shown above. Each lane is 1 meter wide and the lanes are immediately next to each other with no space in between. If Teresa runs once around the outside lane, and Martina runs once around the inside lane, how much further does Teresa run than Martina?

- Geometry -
**bobpursley**, Friday, September 11, 2009 at 5:08pm
What was wrong with my other answer? You gave the inside and outside distances, the difference is 100-50 meters.

- Geometry -
**hannah**, Friday, September 11, 2009 at 5:19pm
Well I didn't understand it I have the following options:

6m

4m

3m

(50+60)m

- Geometry -
**bobpursley**, Friday, September 11, 2009 at 5:28pm
Then I totally don't get the picture.

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