A car moving uniformly and in a straight line at a speed of 36 km / h travels a certain distance in a certain period

A car moving uniformly and in a straight line at a speed of 36 km / h travels a certain distance in a certain period of time. How much faster should the car’s speed be in order to travel three times the distance in the same time? I get that V = 3V0, but in the answers V = 2V0

Since the movement of the car is straight and uniform, i.e. for the same time he covers the same distance, then his path is directly proportional only to his speed of movement (for a fixed time of movement). Thus, in order to triple the distance traveled, you need to triple the speed of movement, i.e. up to 36 * 3 = 108 km / h.