text: calculate the total distance in miles the bird travels? the distance between station atena and station barcena is 90 miles. a train starts from atena towards barcena. a bird starts at the same time from barcena straight towards the moving train. on reaching the train, it instantaneously turns back and returns to barcena. the bird makes these journeys from barcena to the train and back to barcena continuously till the train reaches barcena. the bird finally returns to barcena and rests. calculate the total distance in miles the bird travels in the following two cases:   (a) the bird flies at 90 miles per hour and the speed of the train is 60 miles per hour.   (b) the bird flies at 60 miles per hour and the speed of the train is 90 miles per hour a) 135 miles it takes the train 1.5 hrs to reach barcena, so the bird flies 1.5 hrs at 90 mph = 135 miles.  b) 60miles   it takes the train 1 hr to reach barcena so the bird flies for an hour at 60mph. so it flies 60 miles