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

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neoh147Best ResponseYou've already chosen the best response.1
i know the answer is 60km.. but how to show??
 one year ago

A.Avinash_GouthamBest ResponseYou've already chosen the best response.1
so the bird start flying wen they are 60 km apart..
 one year ago

A.Avinash_GouthamBest ResponseYou've already chosen the best response.1
ok let's do it the smart way.......if u r sitting on the first train and u see the second train........wat wud be it's speed? like rate f approach r wateva
 one year ago

neoh147Best ResponseYou've already chosen the best response.1
relative speed.. if i'm in train A, i will see train B moving with 60km/h toward me...
 one year ago

A.Avinash_GouthamBest ResponseYou've already chosen the best response.1
yea nd that bird?
 one year ago

neoh147Best ResponseYou've already chosen the best response.1
moving with 30km/h away frm me
 one year ago

A.Avinash_GouthamBest ResponseYou've already chosen the best response.1
yea.....so u got a train 60 km away nd moving towards u @ 60 kmph and a damn bird moving away @ 30kmph........so u wanna find wen that bird reaches the train
 one year ago

neoh147Best ResponseYou've already chosen the best response.1
half hour..meet at 30km position..
 one year ago

neoh147Best ResponseYou've already chosen the best response.1
i think i get the idea ald.. thx a lot A.Avinash... just using the relative speed of both train n bird toward me.. n i look like resting.. thn i use the total time for calc the actual distance of the bird...
 one year ago

A.Avinash_GouthamBest ResponseYou've already chosen the best response.1
well ok then
 one year ago
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