Question:
A boy walks on a straight road from his home to market 3 km
Last updated: 6/10/2023
![A boy walks on a straight road from his home to market 3 km](https://media.kunduz.com/media/sug-question-candidate/20210613005337412791-3428668.jpg?h=512)
A boy walks on a straight road from his home to market 3 km away with speed of 6 km h He stays at market for 20 minute and returns home back at speed of 6 km per hour His average speed over round trip is