Question

Shown below are sole designs of slippers, of which some are matched-pairs (one left foot and one right foot). Identify the total number of matched-pairs in the image. 

Hint:

Always pair by mirror-symmetry (left vs right orientation), not just pattern similarity.

Answer 1

Step 1: Identify left and right foot shapes.
- Left foot soles curve inward on the right-hand side.
- Right foot soles curve inward on the left-hand side.
Step 2: Count pairs.
By visually scanning, we match each left with its corresponding right foot pattern. Careful observation shows there are 6 clear matched-pairs. Final Answer: \[ \boxed{6 \, \text{pairs}} \]