Concept explainers
Explain whether each situation is a combination problem or a permutation problem.
The Aluru’s family has a garage door that opens with a 4-digit PIN. They decide to base the code on Mrs. Aluru’s birthday: 01/24/63. How many PINs are there that use four of the digits in Mrs. Aluru’s birthday?
Explain whether the given statement is a combination problem or a permutation problem.
Answer to Problem 37P
Permutation problem
Explanation of Solution
Given:
The given statement:
The Aluru family has a garage door that opens with a 4-digit PIN.They decide to base the code on Mrs. Aluru’s birthday :01/24/63 . How many PINs are there that use four of the digits in Mrs. Aluru’s birthday
Calculation:
Since here the order in which different digits are aligned in the PIN matters and the digits are all different, hence the given statement is a permutation problem.
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