Question

a train 190 m long passes a railway platform 250 m long in 22 seconds. determine: (a) the speed of the train in kilometre per hour.Please give full solution ASAP​

Answer 1

Answer:

The speed of the train is 72 km/h .

Step-by-step explanation:

When a train passes a platform , it covers the distance , that equals to the sum of the length of the platform and the length of the train itself.

Here , the length of the train is 190 meters.

and , the length of the platform is 250 meters.

then , the train covers a total distance of  ( 190 + 250 ) = 440 meters in 22 seconds.

∴ The speed of the train is ( 440/22 ) = 20 m/s

                                                              = ( 20/1000 )/(1/3600)

                                                              = 72 km/h