A train runs first half of the distance at 40 km/hr and the remaining half at 60 May 24, 2022 by admin โช Choose the correct option.A train runs first half of the distance at 40 km/hr and the remaining half at 60 km/hr. What is the average speed for the entire journey?A. 28 Km/hr.B. 52 Km/hr.C. 48 Km/hr.D. None of these Submit Answer