A 600-metre-long train is running at a speed of 48 km/h. It crosses a platform completely in 4 minutes and 30 seconds. What is the length of the platform?
Answer & explanation
Correct answer: option 4
Total time taken = 4 minutes 30 seconds = 270 seconds
Speed = 48 km/h
48 km/h = 48 × \(\frac{5}{18}\) = \(\frac{40}{3}\) m/sec ----(1)
Total distance traveled = 600 m + length pf bridge
We know , Total Distance = Speed × Time
= \(\frac{40}{3}\) × 270 = 3600 m
From 1 ,
600 m + length pf bridge = 3600 m
Length pf bridge = 3600 - 600 = 3000 m