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Our club has 20 members, 10 boys and 10 girls. In how many ways can we choose a president and a vice-president and a secretary if we have no restrictions other than the same person can't hold both offices?

 Dec 24, 2020
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We  are counting sets and orders within those sets....a permutation  will do this.....

 

The number of ways  is P(20,3)   = 6840 

 

 

cool cool cool

 Dec 25, 2020

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