Question

a train 220 M long is running at 80 km per hour how much time will it take to cross a platform 130 metre long​

Answer 1

Answer:

15.75

Step-by-step explanation: speed of train=80km/hr

                                                                    =(80000/3600)m/s=(200/9)m/s

Time the train will take to cross the platform=(length of the platform+length of the train)/Speed of the train

=(130+220)/(200/9)

=(350*9)/200

=15.75 seconds

Answer 2

Train has to cover platform + its length because u have to take its back extreme interface coach

from train front coach interface platform is 130 m long

So back extreme interface need to be cross thats why

So Distance train has to cover = 220+130 = 350 m = 0.35 km

Speed 80 km per hour

So for 0.35 km train would take 0.35/80 hour = 0.004375 hr = 0.004375 × 3600 s

= 15.75 s