Question

a train 28 metres long is running at the speed of 42 kilometre per hour how much time will it take to pass a man standing on a platform​

Answer 1

Answer: 2.4s

Step-by-step explanation:

s = d/t

42km/h = $\frac{28m}{t}$

(42 * 1000)m/(1 * 60 *60)s = 28 /t

35/3 = 28/t

∴ t = 3 * 28/ 35

= 2.4 s

Answer 2

2.4 seconds hope it helps