How many different three-person relay teams can be chosen from six student?

1 answer:

8 0

Different
slot method
1st slot has 6 options to chose from
2nd slot has 5 since 1 is gone to slot 1
3rd slot has 4 since 2 are gone to 1st and 2nd slots

so it is
6 times 5 times 4=120

answer is 120 ways

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