Question

A train crosses a platform in 25 sec. if the train, running at 72 km /hr is 150 m long . find the length of platform​

Answer 1

Answer:

Distance traveled by a train to cross a platform is equal to the sum of lengths of the train and the platform. CALCULATION: Let the length of the train be x m. ∴ Length of the train is 128 m.

Answer 2

Question :-

A train crosses a platform in 25 sec. if the train, running at 72 km /hr is 150 m long . find the length of platform.

Answer :-

• The length of platform is 350m.

Step by step explanation :-

We have given that the a train crosses a platform in 25sec and speed is 72km/hr and the train is 150m long. Now We have to find the length of platform.

Method of solving :

First we find the distance covered by train and subtract the length of train from distance covered by train.

We have,

$\implies$ Speed = 72km/hr

Also written as,

$\implies$ Speed = 20m/s

$\implies$ Length of train = 150m

$\implies$ Time = 25sec

Let's assume that the length of platform be x.

Now, finding distance

We know that,

$\implies$ Distance = Speed $\times$ Time

$\implies$ Distance = 20 × 25

$\implies$ Distance = 500m

Now, we subtract length of train from distance covered by train.

$\implies$ Distance covered by train - Length of train

$\implies$ 500 - 150

$\implies$ 350m

Hence,

The length of platform is 350m.

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