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There are 12 seats in a row. How many ways can we seat 4 students if...

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Advance Math

There are 12 seats in a row. How many ways can we seat 4students if no two students are to sit in adjacent seats?

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We have 12 seats and 4 studentsSo if the students are sitted and we look from left to rightso the seat to the right of every student except the last one needsto be    See Answer
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