RRB Group D 10-Dec-2018 Shift 1 Solved Paper

Question : 85 of 100

Marks: +1, -0

A 141.5 m long train, travelling at 57 km/h, crosses a platform in 39 seconds. What is the length of the platform?

Solution:

{x+14.15}/{39}={57×5}/{18}

x+14.5={57×5×39}/{18}

x+141.5=617.5

x=476\m

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