Word Problem

Posted on 2011-10-21
Last Modified: 2012-05-12
Suppose that license plates in a certain muncipality come in two forms: two letters (A....Z) followed by three digits (0...9) or three letters followed by two digits. How many different license plates are possible

I guess:
26*26 + 10*10

because there are 26 letters in the alphabets
Question by:mustish1
    LVL 73

    Expert Comment

    you're on the right track, but multiply all of them, and you need three 10's, for the 3 digits

    LVL 73

    Accepted Solution

    oops, I only read half the question

    26*26*10*10*10  - this is for 2 letters + 3 digits
    26*26*26*10*10 - this is for 3 letters + 2 digits

    add them together to get all possiblities

    26*26*10*10*10 + 26*26*26*10*10

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