a man performs 1 / 2 of the total journey by rail , 1 / 3 by bus and the remaining 5 km on foot . his total journey is
"explanation : let the journey be x km then , 1 x / 2 + 1 x / 3 + 5 = x 5 x + 30 = 6 x x = 30 km answer : option d"
multiply(3, 5)