Given: The total distance covered by the car is 120 km The speed of the car is 30 km/h Formula used: Distance = Speed × Time Calculation: To cover the distance car takes = (
120
30
) hours = 4 hours Now, from the question, it says that time will be halved i.e., 2 hours So, required speed to travel the same distance = (
120
2
) km/h = 60 km/h ∴ The required speed will be 60 km/h.