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gurjant
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Homework Statement
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
Homework Equations
n! factorials
nPr= n!/(n-r)! premutations
n!/(a!b!c!...) premutations with identical items
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