Question

a train is running at a constant speed of 90 km per hour on a straight track a person standing at the top of a body moves in the direction of motion of the trains Aaj that he covers 1 m on the train It's again the speed of the person with respect to the ground is

Answer 1

Speed of the train is 90km/h
Speed of the man is 1km/h
So, the speed of the man with respect to ground is 91km/h.