The speedy problem-Part II
Two trains are traveling at a speed of 20 kmph and 25 kmph on parallel tracks.And the distance between the trains is 45 km.A bird starts flying between the two trains at a speed of 30 kmph.What is the distance(in km) traveled by the bird when the two trains cross each other in opposite directions?
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The answer is 30.
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1 solution
as here both train travels opp. in direction they will meet in 1hour.And how much the bird flies in between the trains , it will goin to cover 30 km in 1 hour , as it is moving with constant speed..