A person travels equal distances with speed of 3 km/hr, 4 km/hr and 5 km/hr and takes a total of 47
minutes. Find the total distane  Choose the correct choice from the following answers:
A) 3 km  B) 4 km  C) 6 km  D) 9 km  E) 5 km

Rationale: explanation : let the distance be 3 x km , then , x / 3 + x / 4 + x / 5 = 47 / 60 47 x / 60 = 47 / 60 x = 1 so total distance = 3 * 1 = 3 km option a
Answer: A