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anonymous

  • 5 years ago

A four character password consists of one letter from the word MATH followed by three digits which may be 1 2 or 3. If the digits may be used more than once, how many more passwords can be made if the numbers are only used once? 12,24,84,108 and if you know the answer how the heck did you figure it out

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  1. anonymous
    • 5 years ago
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    this is a permutation or combination problem

  2. anonymous
    • 5 years ago
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    SO it is four character let approach this problem bit by bit

  3. anonymous
    • 5 years ago
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    In your first character you have a choice of four:M A T H 4 In your second you have choice of three: 1 2 3 3 Third:1 2 3 3 Fourth 1 2 3 3 so we mulitply 4x3x3x3=answer

  4. anonymous
    • 5 years ago
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    Did it help?

  5. anonymous
    • 5 years ago
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    Im still trying to figure it out it sounds greek even with your explanation thanks

  6. anonymous
    • 5 years ago
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    so basically you multiply possible of each

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