Question

A train of length 500m travelling at 72 km/hr approaches a man standing on the platform. How much time does it take to completly cross him?
a)25 sec
b)20 sec
c) 18 sec
d) 28 sec​

Answer 1

Given,

Length=500m

speed=72km/hr

change this into m/s

72×5/18=20 (km/hr --> m/s will be 5/18 and m/s -->km/hr will be 18/5 ✌✌)

now we know ,

S=D/T

Note:the length of the train will be the distance .

20=500/T

T=500/20

=25 second .

Answer option A pe lock kardo ^^

Option A-) 25 seconds

hope it helps you dear

Answer 2

Step-by-step explanation:

Option A is the correct answer

Hope it helpful!!

Mark me as a brain list answer!!