a person travels equal distances with speeds of 4 km / hr , 5 km / hr and 6 km / hr and takes a total time of 47 minutes . the total distance is ?
"let the total distance be 3 x km . then , x / 4 + x / 5 + x / 6 = 47 / 60 37 x / 60 = 47 / 60 = > x = 1.27 total distance = 3 * 1.27 = 3.81 km . answer : b"
multiply(multiply(divide(divide(47, const_60), add(add(divide(const_1, 4), divide(const_1, 5)), divide(const_1, 6))), const_3), const_1000)