The speed of the driver = 50 km/h
Distance from office = 30 km
Time travelled by driver = 0.75 h
Speed = Distance / time
∴ Distance = Speed * time
= 50 * 0.75 = 37.5 km
the distance travelled by the driver 37.5 km is greater than the distance from the office 30 km
he had already driven enough to reach the place