Question

Heya❤️✌️❤️


a train of lenght 130m moving with a uniform speed of 36km/hour will cross a 1370 m long bridge in:-

a)38s
b)14.7s
c)137s
4)5/2 min..


provide full solution.....​

Answer 1

Total distance=(130+1370)m=1500m

speed=36km/hr=36×5/18=10m/sec

Time taken=dist./speed=1500/10=150sec

=2min30sec

Answer 2

Answer : (4) 5/2 min

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Solution :

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Given that :

The length of the train = 130m and the length of the bridge = 1370m

Then, total distance will be covered by the train = 130+1370 = 1500m

Also given that :

The speed of the train = 36km/h

In m/sec speed will be = 36×5/18 = 10m/sec

As we know that :

speed = distance/time

=> time = distance/speed

=> time = 1500/10 = 150sec

In minutes : 150/60 = 5/2 minutes

So, 5/2 minutes are taken by train in covering the distance.