Home
Book
Learn
Library
Practice
Contact
Log In
BasicCountingPrinciple
AMC10/12
2003
Problem - 2756
How many $15$-letter arrangements of $5$ A's, $5$ B's, and $5$ C's have no A's in the first $5$ letters, no B's in the next $5$ letters, and no C's in the last $5$ letters?
report an error