SOLUTION: A PIN consists of 4 digits.. For extra security, a bank requires that the 4 digits (1) not be all the same [suchas 0000] (2)not be a repeated pair {suchas 7373] (3) not be a conse

Question 39548: A PIN consists of 4 digits.. For extra security, a bank requires that the 4 digits (1) not be all the same [suchas 0000] (2)not be a repeated pair {suchas 7373] (3) not be a consecutive increasing/decreasing sequence (suchas 3456 or 3210, where 0 is considered the smallest digit so 7890 is not consecutive). Howmany
different PINs are possible?
Answer by benni1013(206) (Show Source): You can put this solution on YOUR website!
The answer is a permutation (9,4) 9*8*7*6 will be your answer.
RELATED QUESTIONS
Your bank requires you to pick a four digit PIN for your debit card from the digits 0-9.... (answered by Edwin P McCravy)

A social security number is a code of 3 digits- 2 digits- 4 digits. If repetition of... (answered by ankor@dixie-net.com)

Imagine that you need to create a pin code that consists of 6 numbers. How many different (answered by ikleyn)

A security code is to be formed by using three alphabets and four digits chosen from the (answered by Edwin McCravy)

How do you solve the following A Social Security is a code made up of 3 digits - 2 digits (answered by Alan3354)

Raphael needs to create a PIN code for his new bank account. His bank requires the PIN... (answered by stanbon)

The access code for a car's security system consists of 4 digits. The first digit cannot (answered by stanbon)

A security system consists of four digits password. The first two digits must be... (answered by edjones)

a security code for a building consists of six digits. determine the number of security... (answered by Alan3354)