Question

A train 760m long crosses a platform 440m long in 40 seconds. find the speed of the train in km per hour

Answer 1

Relative distance covered : 760 + 440 = 1200m

relative/total time taken : 40 sec

so relative speed of train : 1200÷40 = 30m/s

now in kmph : 30×( 18/5) = 108 kmph