how much time a train will take to cross A 800 M long Bridge running at a speed of 50 km per hour if the length of the train is 200 m
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the whole train will take around 21.6 minutes to cross the bridge
OmBiswal:
time is equal to distance by speed
right on the method, wrong on the answer. If the train needs to cover 1000 M (distance of bridge plus length of train) that is 1 km. 1 km is 1/50 of the speed being traveled 50km h, 1/50 of an hour is 72 seconds, or 1 minute and 12 seconds.
I've already answered it
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Hey!!!!
Given for a train,
length = 200m
speed = 50 km/h
In what time it covers a distance of 200 m ,
We'll use unitary method here,
if 5000 m in 60 minutes
then 200 m in x minutes
Thus x = 200 * 60 / 5000
=> x = 12/5 minutes
If 200 m in 12/5 minutes the train covers, then how much time will it take to completely pass a 800m long bridge,
200 = 12/5
1000 = x
We have taken 1000 considering the length of the train itself also.
Thus x = 12/5 * 1000 / 200
=> x = 12 minutes
Thus the train will take 12 minutes to pass the bridge
Given for a train,
length = 200m
speed = 50 km/h
In what time it covers a distance of 200 m ,
We'll use unitary method here,
if 5000 m in 60 minutes
then 200 m in x minutes
Thus x = 200 * 60 / 5000
=> x = 12/5 minutes
If 200 m in 12/5 minutes the train covers, then how much time will it take to completely pass a 800m long bridge,
200 = 12/5
1000 = x
We have taken 1000 considering the length of the train itself also.
Thus x = 12/5 * 1000 / 200
=> x = 12 minutes
Thus the train will take 12 minutes to pass the bridge
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