An identification code is composed of three characters. the first character is the letters a or b, followed by a 2, 4, or 6, and e

An identification code is composed of three characters. the first character is the letters a or b, followed by a 2, 4, or 6, and ending with either the letters y or z. how many possible codes exist?

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  1. There are 12 possible codes that exist.
    To find how many possible codes exist:
    • As an output, you will have three characters in total.
    • Let us represent our unknown as XXX here.
    • We have two options for the first X: A and B.
    • It can only be one of those two options.
    • We will have three options for the second X: 2, 4, and 6.
    • Only one of those three possibilities is possible.
    • Following the pattern, the third X has only two options: Y or Z.
    • There are two options.
    • In this case, the rule is that each set of possibilities is multiplied together (in this case, the two from the first X, the three from the second X, and the two from the third X).
    • So, 2×3×2 = 12, which gives us 12 possible codes.
    Therefore, there are 12 possible codes that exist.
    Know more about probability here:
    #SPJ4

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