Motorist Miffed by Mustard Mishap

Matilda the Mad Motorist is at a hot dog stand in Town A and looks at her map to determine how far she must drive to go to Town D. Unfortunately, a lunch time mishap leaves a nasty stain on her map and Matilda can't read one of the distances.

Matilda's Map:

All Matilda knows is that the distance between Town A and Town D is the same whether she travels clockwise or counterclockwise.

What is the distance from Town A to Town B, and what is the distance from Town A to Town D?

See the solutions