how much time does a train 150 metres long running at 54 km / hr take to pass a pole ?
"explanation : 54 km / hr = 54 * 5 / 18 = 15 m / s speed = distance / time ; v = d / t 15 = 150 / t t = 10 s answer : e"
multiply(divide(divide(150, const_1000), 54), const_3600)