A train of some length passes the platform of length 524 metre in 55 seconds. Find the length of train if the speed of trains is 72 km/hr.

Explanation

576 metre When a train crosses a platform, the distance covered = length of train + length of platform ∴ If the length of train be x metre, 55 524 18 5 72 Time Distance Speed + = × ⇒ = x ⇒ 20 × 55 = x + 524 ⇒ x + 524 = 1100 ⇒ x = 1100 – 524 = 576 metre