Two trains leave at the same time from stations that or 60 km apart. the trains travel towards each other, one at 55 km/h and the other at 65 km/h. at the same time, a bee flying at a constant rate of 80 km/h starts at the front of one train, and flies to the front of the other train, immediately turns and flies back to the front of the first train, and so on. when the two trains meet, what is the total distance that the bee will have flown?