Question

If a train 240 m long passes a pole
in 16 seconds, then the speed of
the train is :
(A) 36 km/h
(B) 54 km/h
(C) 60 km/h
(D) 72 km/h​

Answer 1

speed=distance/time

1m/s=18/5km/h

given train length(distance)=240m

time taken to pass pole =16s

speed=240/16=15m/s

15m/s=15×(18/5)=54km/h..

hemce option(B) is answer

Answer 2

The speed of  the train is 54 km/h

Step-by-step explanation:

The length of the train = 240 m

Time to pass the pole = 16 s

We know that a train covers a distance equal to its length to pass a stationary object.

So, here,

distance = 240 m

time = 16 s

Hence, speed of the train is given by

$\text{Speed} = \frac{\text{Distance}}{ \text{time}}\\\\\text{Speed} =\frac{240}{16}\\\\\text{Speed} =15m/s$

Convert this speed to km/hr

$15m/s\\\\=15\cdot\frac{18}{5}\\\\=54 km/hr$

the speed of  the train is 54 km/h

B is correct Option.

#Learn More:

A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?

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