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Mathematics

11th -

12thgrade

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Combinatorics 1

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10 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt

    How many different combinations of management can there be to fill the positions of president, vice president and treasurer in a club if there are 12 eligible candidates?

    9

    132

    1320

    220

  • 2. Multiple Choice
    45 seconds
    1 pt

    How many different ways can the letters in the word "trial" be arranged such that the word will begin with a vowel?

    24

    48

    72

    120

  • 3. Multiple Choice
    45 seconds
    1 pt

    How many four-digit numbers can be formed with the digits 1,2,3 and 4?

    81

    256

    24

    64

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