Mathematics, 10.03.2021 07:30, kioxio69

If there are 20 girls and 15 boys in a class, how many ways can they choose two class presidents (one boy and one girl) and two class Vice Presidents (one boy and one girl) if no person can hold two offices?

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If there are 20 girls and 15 boys in a class, how many ways can they choose two class presidents (on...