Bob traveled from City A to City B at an average speed of 30 kilometers/hour. For his return trip, he took a different route. The average speed of the return trip was 2/3 of the speed of the trip from City A to City B and the route he took from City A to City B is 1/5 longer than that of the return route. What is the average speed of a total trip in kmph (rounded to the nearest tenth place)?
A. 22.4
B. 24.4
C. 25.1
D. 26.4
E. 27.3
