Question

a goods train 200 m long crosses a 100 M long platform at 54 km per hour how long does it takes to pass the platform

Answer 1

simple question !!

here is your answer !!

total length => length of the train + length of platform

200+ 100=> 300 m


speed =>54km / h

so in m/s

5/18×54 => 15


so time taken => Total distance / total time

=> 300/ 15

20 s


hope it help you !!

thanks

Answer 2

Speed = 54km/hr

= 54 × 5/18

= 15 m/s

Distance = length of train +

length of platform

= 100+ 200

= 300m

Time= d/s

= 300/15

=20s