Question

The east west streets are numbered starting with 1st and the north south street area lettered starting with

a. how many paths are there from 1st and a to 7th and f (assuming no back tracking)

Answer 1

7*6=42
if a=1 then f=6 , so there are 6 paths from a to f on the north to south street
there are 7 paths from 1 to 7 on the east west street