A car drove from Mumbai to Pune without stopping. It covered the first 72 km of its journey at an average speed of 48 km/h. What was the car’s average speed (in km/h), for the remaining 63 km if its overall average speed was 27 km/h?
1
21 km/h
2
18 km/h
3
16 km/h
4
14 km/h