Mathematics, 25.04.2021 23:40 steven0448

A school social group has 30 seniors, 38 juniors, 24 sophomores, and 18 freshmen. They need to choose a president, an assistant, and an accountant. The president must be a senior and the assistant must not be a freshman. How many different ways can they pick the officers?

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A school social group has 30 seniors, 38 juniors, 24 sophomores, and 18 freshmen. They need to choos...

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