1.

Speed of train = x km/hTrain takes 30 sec to cross 200mdoom lenglet platfoomA man is also going in the same direction of train speed of man is 6km/h train takes 20 sec to cross the man find the speed of train?​

Answer»

Answer:

Distance=210 m

Time=6 s

RelativeSpeed=

time

distance

6

210

=35m/sec=35×

5

18

=126km/h

Since man is RUNNING in opposite direction of the TRAIN then

Relative speed=speed of the train+speed of the man

∴Speed of the train=126−9⇒117km/h



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