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?
Speed = [300 / 18] m/sec = 50/3 m/sec.
Let the length of the platform be x metres.
Then, x + 300 / 39 = 50/3 ? 3(x + 300) = 1950 ? x = 350m.
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