The engineering team built a 4 km long highway, which was completed in 12 days. How many kilometers are built on average every day? How many parts of this road are built on average every day?

On average, 4/ 12= one third of a kilometer1/3/4 =112. On average, one twelfth of this highway is built every day.

I hope it will help you. I wish you progress in your study and hope to adopt it! Thank you! O(∩_∩)O~