Question

A train went from howrah to bandel with a speed of 20 km/hr and then return from bandel to Howrah with a speed of 15 km/hr. Find the average speed​

Answer 1

Speed 1 = 20 km/h

Speed 2 = 15 km/h

Average speed = $\frac{20+15}{2}$

Average speed = 17.5 km/h

Answer 2

Answer
15 Km / hour
Explation
Average means meduim or less .
There are only two words 15 and 20
15 is smaller than 20
Thats why the answer is 15