A train runs for 2 hrs. at the speed of 35 km/h. It runs for 3\frac{1}{2} hrs at the speed of 60 km/h and then runs for 2\frac{1}{2} hrs at the speed of 70 km/h. Find the average speed of the train.

Correct answer: 56.87 km/h

Explanation: ✅ Correct Answer: D) 56.87 km/h 📚 Explanation: The total distance traveled is (2 * 35) + (3.5 * 60) + (2.5 * 70), which equals 70 + 210 + 175 = 455 km. The total time taken for the whole journey is 8 hours. To find the average speed, we divide the total distance of 455 km by the total time of 8 hours. This calculation gives an average speed of 56.87 km/h.