**A truck travels from A to B.**

Going uphill, it goes at 56 mph.

Going downhill, it goes at 72 mph.

On level ground, it goes at 63 mph.

If it takes 4 hours to travel from A to B, and 5 hours to come back,

what is the distance between A and B?

Going uphill, it goes at 56 mph.

Going downhill, it goes at 72 mph.

On level ground, it goes at 63 mph.

If it takes 4 hours to travel from A to B, and 5 hours to come back,

what is the distance between A and B?