Two trains start from stations A and B spaced 50 kms apart at the same time and speed. As the trains start, a bird flies from one train towards the other and on reaching the second train, it flies back to the first train. This is repeated till the trains collide. If the speed of the trains is 25 km/h and that of the bird is 100 km/h. How much did the bird travel till the collision. Select the correct option:
A) 100
B) 288
C) 127
D) 27
E) 2691
ince the trains is travelling at 25 kmph, at each other, the relative speed is 50 kmph.   Speed = 50 kmph   Distance = 50 km   Time to collision = distance / speed = 1 hr   Speed of bird = 100 kmph   Time flying = 1 hr (the bird is flying till the trains collide)   Distance travelled = speed × time = 100 km   100nswer:100
<result>A</result>
Two trains start from stations A and B spaced 50 kms apart at the same time and speed. As the trains start, a bird flies from one train towards the other and on reaching the second train, it flies back to the first train. This is repeated till the trains collide. If the speed of the trains is 25 km/h and that of the bird is 100 km/h. How much did the bird travel till the collision.