Question

Two trains ,each having a speed of 30km/h ,r headed at each other on the same track. A bird that can fly 60km/h flies off the front of 1 train when they were 60km apart and heads directly to the other train . On reaching the
train ,the bird flies back to the first train.
What is the total distance the bird travels
before the train collide??

Answer 1

Speed of the two trains when they are headed in the same track = 30 km / hr Speed of the bird when it flies off the front of one train = 60 km / hr To find ;- ⇒ What is the total distance the bird travels before the trains collide? Sol ;- Let us take the speed of one train as V₁ and the speed of another train as V₂ Now, Let us take the total distance between the to trains as - x = 60 km ------------------------------------------------------------------------------------------------ ⇒ Time taken to collide each other = ( V 1 + V 2 ) / X = ( 30 + 30 ) / 60 = 60 / 60 = 60 min = 1 hr Time taken to collide each other = 1 hr Time taken for the Bird Flight is = 1 hr Now let us find the total distance by the bird - Total distance travelled by the bird = Speed of the bird × Time of the before the trains collide flight = 60 × 1 = 60 km So , total distance of the = 60 km bird before the trains collides