WE CAN ASSIGN ONE OF THE INTEGERS 1, 2, 3, …, 7 (WITH NO REPETITIO...
8.
We can assign one of the integers 1, 2, 3, …, 7 (with no repetitions) to each
of the seven regions in the diagram so that numbers in adjacent regions
a
b
c
(having a common edge) differ by 2 or more.
d
e
f
g
How many different values are possible for region g?
Solution: