Mohan travels 20% distance of the total journey by car and 75% of the remaining by train and Bus in the respective ratio of 5 : 3 and the remaining distance he covers on feet. If the sum of the distance which he travels by car and by foot is 320 km, then find the total distance which Mohan travels during his journey?
1
1000 km
2
400 km
3
500 km
4
600 km
5
800 km