Question

A train travels a distance of 20 km in first hour 30 km in second hour and 10 kilometre in third hour. calculate the average speed of the train​

Answer 1

Average Speed = $\frac{Total Distance}{Total Time Taken}$

So It equals to $\frac{20km+30km+10km}{3hours}$

Which if you do the math equals to 20km/hr