Joe wants to find all the four-letter words that begin and end with the same letter. How many combinations of letters satisfy this property?
Question:
Joe wants to find all the four-letter words that begin and end with the same letter. How many combinations of letters satisfy this property?
Answer:
Let's think step by step.

user
17576
Joe wants to find all the four-letter words that begin and end with the same letter. How many combinations of letters satisfy this property?
train