The problem involves identifying the tracks made by the front and rear tyres of a bicycle. When observing bicycle tracks, it is important to recognize the relationship between the two. The front tyre, being steered, will typically have a more variable path, whereas the rear tyre will follow the trajectory of the front, leaving a straighter path. Here's how we identify the tracks:
- Front Tyre Track: This track generally exhibits broader curves and changes direction more frequently, as it is responsible for steering the bicycle.
- Rear Tyre Track: This track tends to follow the front tyre more closely and often appears straighter.
Given the options and understanding the behaviour of bicycle tracks, we can determine that:
- Blue Path: This path likely represents the front tyre due to its more frequent directional changes and varied curves.
- Green Path: This path appears to follow more closely, indicating the rear tyre.
Thus, the correct answer is:
Blue is front, Green is rear.