1. **Stating the problem:** A driver travels from Bolga to Walawale, a distance of 40 miles. After 60 minutes, the driver stops at Kalminga, which is 10 miles from Bolga. Then, 30 minutes later, the driver continues the journey to Walawale in 60 minutes. After 30 minutes, the driver returns to Bolga in 120 minutes. 2. **Understanding the problem:** We want to analyze the journey segments, calculate speeds, and check distances and times for consistency. 3. **Segment 1: Bolga to Kalminga** - Distance: 10 miles - Time: 60 minutes = 1 hour - Speed formula: $\text{Speed} = \frac{\text{Distance}}{\text{Time}}$ - Speed: $\frac{10}{1} = 10$ miles per hour 4. **Segment 2: Kalminga to Walawale** - Given time: 60 minutes = 1 hour - Given distance: 60 miles (note: problem states 60 miles, but initial distance between Bolga and Walawale is 40 miles, so this seems inconsistent; we proceed with given data) - Speed: $\frac{60}{1} = 60$ miles per hour 5. **Segment 3: Walawale to Bolga (return journey)** - Time: 120 minutes = 2 hours - Distance: 40 miles (original distance between Bolga and Walawale) - Speed: $\frac{40}{2} = 20$ miles per hour 6. **Summary:** - Segment 1 speed: 10 mph - Segment 2 speed: 60 mph - Segment 3 speed: 20 mph 7. **Note:** The problem states the distance from Kalminga to Walawale as 60 miles, which contradicts the total distance of 40 miles between Bolga and Walawale. This may be a typo or error in the problem statement. Final answer: Speeds for each segment are 10 mph, 60 mph, and 20 mph respectively.