how many seconds will a train 120 meters long take to cross a bridge 200 meters long if the speed of the train is 36 kmph ?
"explanation : d = 120 + 200 = 320 s = 36 * 5 / 18 = 10 mps t = 250 / 10 = 32 sec answer : option b"
divide(add(200, 120), multiply(36, const_0_2778))