Speed of train first = 30 km/hr Distance covered by first train in 2 hrs (9 am to 11 am) = 2 × 30 = 60 km. Distance between P and Q = 300 km Remaining distance = 300 – 60 = 240 km Speed of train second = 45 km/hr Both train run opposite direction, then Speed of both train = (30 + 45) = 75 km/hr As we know Time = Distance/Speed Time = 240/75 Time = 3.2 hr Distance covered by first train in 2 + 3.2 = 5.2 hrs = 30 × 5.2 = 156 km Distance covered by second train in 3.2 hrs = 45 × 3.2 = 144 km Required ratio = 156 : 144 = 13 : 12