If 'Rajdoot' is coded as 'Car', 'Car' as 'Aeroplane', 'Aeroplane' as 'Train', 'Train' as 'Bus', then by which vehicle can you reach your destination in least time?

Aeroplane Train Car Bus

Train

We can reach our destination in least time by aeroplane. According to the question, aeroplane is coded as train. Thus, train is the correct answer.