Question

A train 350 m long crosses an electric pole in 28sec. Find speed of train in km/hr through direct or inverse variation

Answer 1

Train covers a distance of 350/28==12.5m in one second
So for one hour which implies for 3600 seconds... Train covers a distance of 12.5×3600=45000m
45000m==45km
So the speed of train is 45kmph.
Hope this helps you