Question

a train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. if the speed of the train is 54 km/hr what is the length of the platform? select one: 120 240 300 none of the above

Answer 1

none of the above

none of the above

Answer 2

Hii...
Here is your answer..

Solution:-
Speed of the train is given =54km/h
To convert it in m/s we will multiple it will 5/18
$= > 54 \times \frac{5}{18}$
=>15m/s

So,

Length of the train=Distance
Distance=Speed ×Time
$= > 15 \times 20 \\ = > 300m$
Now,
Let the length of platform be x.

So,
We know that,
$speed = \frac{distance}{time} \\ = > 15 = \frac{( x + 300)}{36} \\ = > x + 300 = 540 \\ = > x = 540 - 300$
$= > x = 240$

Hence,
The length of platform is 240m.

Hope it helps uh...✌️✌️✌️