Question

the length of a train and that of a platform are equal if with speed 90 km per hour the train crosses the platform in one minute then the length of the train is what

a) 500
b)600
c)750
d)900​

Answer 1

Answer:

Ans (c)

Step-by-step explanation:

Let length of both train and platform be x.

Distance covered by the train to cross the platform = x + x = 2x

Time = 1 min = 60 s

and speed = 90 km/h

= 90×518=25m/s

Therefore, Distane = Speed×Time

= 2x = 25 x 60

= x = 750 m

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