a train 110 m long is running at 50 kmph . in how much time will it pass a platform 210 m long ?
distance travelled = 110 + 210 m = 320 m speed = 50 * 5 / 8 = 125 / 4 m time = 320 * 4 / 125 = 10.24 seconds answer : e .
divide(add(110, 210), multiply(50, const_0_2778))