Question 51

A 145 m long train crosses a 655 m long bridge in 36 seconds. What is the speed of the train?

Solution

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Train has to cross a 655 m bridge and so total distance=655+145=800 m

Time taken=36 seconds

Speed=800/36=200/9 m/s=(200/9)*(18/5) km/hr

=80 km/hr

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