Rekha completes her journey in 3 parts. She travels 120 km by car at the speed of 40 km/hr, then she covers 350 km by train at the speed of 70 km/hr, and covers the remaining distance by bus at the speed of 65 km/hr. The average speed for her whole journey is 60 km/hr. If Rekha decides to complete the whole journey by bus, how much time will be required to reach the destination?
1
8\(\frac{3}{13}\) hours
2
9\(\frac{4}{9}\) hours
3
8\(\frac{4}{9}\) hours
4
9\(\frac{3}{13}\) hours