Step 1: Understanding the concept of chaining.
In a survey, chaining involves measuring distances using arrows placed at fixed intervals.
Step 2: Applying the given conditions:
- The leader has 4 arrows in his hand, meaning he has already laid out some chains.
- The follower has 6 arrows, indicating these have been used to measure the distance from the starting point.
Step 3: Conclusion
Since each arrow represents one chain of distance, the follower is 6 chains away from the starting point.