1227jackie 1227jackie

21-01-2017
Mathematics

Answered

To create an entry code, you must first choose 2 letters and then, 4 single-digit numbers. How many different entry codes can you create?

Verified Answer :

foggles foggles

21-01-2017

Assuming that the letters can only be capitals or non-capitals then:
(26P2)(9P1)4 = 23400 possible combanations

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