A train traveling at 48 km/hr completely crosses another train having half its length and traveling in opposite direction at 42 km/hr, in 12 seconds. It alos passes a railway platform in 45 seconds. What is the length of the platform?
A train traveling at 48 km/hr completely crosses another train having half its length and traveling in opposite direction at 42 km/hr, in 12 seconds. It alos passes a railway platform in 45 seconds. What is the length of the platform?