+0  
 
-2
113
2
avatar

The letters $A, B$ and $C$ are used to form every possible three letter ``word.'' When these ``words'' are arranged in alphabetical order and numbered so that $AAA$ is Word $1$ and $CCC$ is Word $27$, what number will correspond to the position of word $BAB$ on the list?

 

IDK where to start and how to do. Pls help CPhill!!!

 Jul 19, 2022
 #1
avatar+2448 
0

Just make a list...

 

It would look like this: AAA, AAB, AAC, ABA, ABB, ABC, ACA, ACB, ACC, ... , CCB, CCC.

 Jul 19, 2022
 #2
avatar
+1

ans is 11, Thx so much @BuilderBoi

Guest Jul 19, 2022

10 Online Users