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    Arrangement of Letters in Word 'Parallelogram'

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    Find the number of different selections of three letters which can be made from the letters of the word PARALLELOGRAM.

    How many of these contain the letter P?

    © BrainMass Inc. brainmass.com March 4, 2021, 5:47 pm ad1c9bdddf
    https://brainmass.com/math/combinatorics/arrangement-letters-word-parallelogram-11365

    Solution Preview

    If the order of the three letters doesn't matter, this is a combination.
    There are altogether 13 letters in the word PARALLELOGRAM, but only 8 different ones.

    1. If the selection has all different letters, there are (3)C(8) combinations:
    (3)C(8) = ...

    Solution Summary

    The number of different selections of three letters which can be made from the letters of the word PARALLELOGRAM are calculated.

    $2.49

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