1. **Stating the problem:** We are given the bearing of Ibadan from Lagos as 310 degrees. We need to find the bearing of Lagos from Ibadan. 2. **Understanding bearings:** Bearings are measured clockwise from the north direction. The bearing from point A to point B is the angle measured clockwise from north at A to the line connecting A to B. 3. **Formula and rule:** The bearing from B to A is the opposite direction of the bearing from A to B. To find the opposite bearing, add or subtract 180 degrees: $$\text{Bearing from B to A} = (\text{Bearing from A to B} + 180) \mod 360$$ 4. **Calculation:** Given the bearing from Lagos to Ibadan is 310 degrees, $$310 + 180 = 490$$ Since bearings are within 0 to 360 degrees, subtract 360: $$490 - 360 = 130$$ 5. **Answer:** The bearing of Lagos from Ibadan is **130 degrees**. This means if you stand at Ibadan facing north, you turn 130 degrees clockwise to face Lagos.