GR.12 DATA MANAGEMENT

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How many ways are there to arrange the word: MATHEMATICS, if the last letter can not be "H", and the first letter must be a vowel?

  • GR.12 DATA MANAGEMENT -

    First of all there are 11 letters. Line them up by vowels and consonants.
    A A E I (vowels)
    C H M M S T T (consonants)

    You know you must begin with a vowel and must not end with H.

    See what you can come up with? (There is always the dictionary!)

    Sra

  • GR.12 DATA MANAGEMENT -

    3 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2, i think

  • GR.12 DATA MANAGEMENT -

    I GOT IT!!!!!!!

    [10!/(2!2!) - (9!/2!2!)]+[(2)(10!/2!2!2!) - [(2)(9!/2!2!2!)]=1632960

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