a-300-metre-long-train-crosses-a-platform-in-39-seconds-while-it-crosses-a-signal-pole-in-18-seconds.-what-is-the-length-of-the-platform-5e8ac8f1a107e59f202a02bc

A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform?

320 m
350 m
650 m
Data inadequate

Speed =		300		m/sec =	50	m/sec.
		18			3

Let the length of the platform be x metres.

Then,		x + 300		=	50
		39			3

3(x + 300) = 1950

x = 350 m.