Question

An object is spotted at 60°E front bearing from the observer. If the position is interchanged, the front bearing value in degree from North (measured clockwise) is

Hint:

When interchanging bearings, add 180° to the given bearing and adjust for directions.

Answer 1

Step 1: Understanding the question.
The question asks for the bearing of an object when the position is interchanged. The bearing is initially given as 60°E from the observer.
Step 2: Analyzing the solution.
To interchange the bearing, we need to calculate the opposite direction. The front bearing is 60° from the observer; its opposite will be 180° apart, which means the new bearing from the North will be 120° clockwise.
Step 3: Conclusion.
The correct answer is 120°.