how long does a train 110 meters long running at the rate of 36 km / hr take to cross a bridge 132 meters in length ?
"distance = length of train + length of bridge = 110 + 132 = 242 speed = 36 km / hr = 36 * 5 / 18 = 10 m / s required time = 242 / 10 = 24.2 seconds answer is a"
divide(add(110, 132), multiply(36, const_0_2778))