What is the speed of a car which travels 60 km in 30 minutes?

To calculate the speed of a car, you would use the formula: Speed = Distance / Time. In this case, the car traveled 60 km in 30 minutes, which is 0.5 hours (since 30 minutes is half an hour). So, the speed of the car would be 60 km / 0.5 hours = 120 km/h.