A man complete a certain journey by car. If he travels 30% of distance and 60% of distance at 20 km/hr and 40 km/hr respectively and remaining distance at 10 km/hr, find average speed to cover total distance ?

Options

A. 25 km/h
B. 28 km/h
C. 30 km/h
D. 33 km/h

Answer

A