Question

Buses and trucks have wider wheels than
cars. Some of them also have double wheels
at the back can you explain why?​

Answer 1

Answer: as they are more heavy than cars

Explanation:

Answer 2

Answer:

Buses and trucks have double wheels at the back because these are heavy vehicles with most of the loads resting towards the back. Also, the engine that drives the vehicle is attached to the back wheels so the double back wheels provides better hold on the ground.