(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Ten students have been nominated for positions of secretary, treasurer, social convenor, and fundraising chair. In how many ways can these positions be filled if the Norman twins are running and plan to switch positions on occasion for fun since no one can tell them apart?

txt book answer:4032

2. Relevant equations

n! factorials

nPr= n!/(n-r)! premutations

n!/(a!b!c!......) premutations with identical items

3. The attempt at a solution

10P4=5040 totals ways nominations can be picked

i don't know how to find the number of ways twins can be picked/ answer

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# Data Management: Premutations Problem With identical Items

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