A person moves 30 m along north direction, then moves 40 m along east direction and finally moves 20 m along south direction. Find distance & displacement

Explanation

To solve the problem of finding the distance and displacement of a person who moves in a specific path, we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding the Movement**:
- The person moves 30 m North.
- Then, the person moves 40 m East.
- Finally, the person moves 20 m South.
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