SOLUTION: A freight train passes through a 750 metre long tunnel at 50km/hr. The back of the train exits the tunnel 1.5 min after the front of the train enters it. What is the length of the
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Question 937739: A freight train passes through a 750 metre long tunnel at 50km/hr. The back of the train exits the tunnel 1.5 min after the front of the train enters it. What is the length of the train, in metres?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A freight train passes through a 750 metre long tunnel at 50km/hr. The back of the train exits the tunnel 1.5 min after the front of the train enters it. What is the length of the train, in metres?
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distance front of train goes in 1.5 min::
50(km/hr) = 50[1000 m/60 min) = (50000/60) = 833.33 meters/min
1.5*833.33 = 1250 meters in 1.5 minutes
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Let train length be "x meters"::
Distance traveled to enter and clear the tunnel in 1.5 min::
750 + x meters = 1250 meters
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Ans:: x = 500 meters (length of the train
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Cheers,
Stan H.
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