Math 157

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A group of 10 students consists of 3 girls and 7 boys. How many ways can the students be
arranged from left to right if the first 3 students are girls and the remaining students are all
boys?

  • Math 157 -

    How many ways can the girls be arranged?
    3!
    how many ways can the boys be arranged?
    7!
    so
    3!*7! big number
    6*5040 = 30,240

  • Math 157 -

    no the girls can be arranged 9 different ways and the boys can be arranged 49 different ways

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