Chapter 16: Problem 10
A code is to be made by arranging 7 letters. Three of the letters used will be the letter \(A\), two of the letters used will be the letter \(B\), one of the letters used will be the letter \(C\), and one of the letters used will be the letter \(D\). If there is only one way to present each letter, how many different codes are possible? a. 42 b. 210 c. 420 d. 840 e. 5,040
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.