a train 140 m long is running at 60 kmph . in how much time will it pass a platform 260 m long ?
"distance travelled = 140 + 260 m = 400 m speed = 60 * 5 / 8 = 50 / 3 m time = 400 * 3 / 50 = 24 second answer : b"
divide(add(140, 260), multiply(60, const_0_2778))