Question

A vehicle moving with a speed of 18 km/h covers what metre in 1seconds

Answer 1

to convert km/hr to m/s we have to multiply the digit by 5/18
hence the body will move 5 m in one second.

Answer 2

it cover 5 m in one second 
if we convert 18 km/h in m/s then we get 5 m/s that is  it means that it cover 5m in 1 sec