1. Stating the problem: A car covers 180 kilometers in 3 hours. We want to find how many kilometers it covers in 5 hours. 2. Determine the speed of the car by dividing the distance by the time: $$\text{speed} = \frac{180\text{ km}}{3\text{ hours}} = 60 \text{ km/h}$$. 3. Use the speed to calculate the distance covered in 5 hours: $$\text{distance} = \text{speed} \times \text{time} = 60\text{ km/h} \times 5\text{ hours} = 300 \text{ km}$$. 4. Conclusion: The car covers 300 kilometers in 5 hours. Final answer: 300 km.