a train is 288 meter long is running at a speed of 29 km / hour . in what time will it pass a bridge of 101 meter length ?
"speed = 29 km / hr = 29 * ( 5 / 18 ) m / sec = 145 / 18 m / sec total distance = 288 + 101 = 389 meter time = distance / speed = 389 * ( 18 / 145 ) = 48.29 seconds . answer : a"
divide(add(288, 101), divide(multiply(29, const_1000), const_3600))