Question

a train 600 M long travelling at the speed of 60 km per hour passes a bridge in 90 seconds. what is the length of the bridge?

Answer 1

length of the bridge 900 meters

Answer 2

The length of the bridge is 900m.

Given data :

Length of the train is 600 m.

The train takes 90 seconds to cross the bridge.

The speed of the train is 60 km per hour.

Let,the length of the bridge = x

So,

Total distance covered by train = (600+x)m

And,

The train covers

60 km = 1 hour

60000m = 3600 seconds

3600 seconds = 60000m

1 second = 60000/3600 m

90 second = 60000×90 / 3600 m = 1500m

So,the total distance = 1500m

Now,

600+ x = 1500

x = 1500-600

x = 900 (Answer)