Question

A train 760 m long crosses a platform 440 m 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

Answer 2

Answer:

Total distance=(760+440) m

=1200 m

Time=40 secs

Speed= (1200/40) m/sec

= 30m/sec

In kmph,

(30×18/5) kmph

=108 kmph(Ans)

Step-by-step explanation: First we counted the total distance and we found the speed in m/sec, then we converted it in to kmph with its formula...Hope it helps