Guide :High School

How many four-digit personal identification numbers (PIN) are possible if the PIN cannot begin or end with a 0 and the PIN must be an even number? a. 3,600

How many four-digit personal identification numbers (PIN) are possible if the PIN cannot begin or end with a 0 and the PIN must be an even number? a. 3,600 b. 4,000 c. 4,500 d. 8,100
There would be 4500 combonations ...

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