how much time does a train 125 metres long running at 60 km / hr take to pass a pole ?
"explanation : 60 km / hr = 60 * 5 / 18 = 16.67 m / s speed = distance / time ; v = d / t 16.67 = 125 / t t = 7.5 s answer : c"
multiply(divide(divide(125, const_1000), 60), const_3600)