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OpenStudy (anonymous):
A student club has 12 members. How many ways can the club choose a president, vice president, secretary, and treasurer?
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OpenStudy (anonymous):
Well first youchoose 4 people out of the 12. Ways = 12C4 Now the four people can be assigned diff jobs- Thats lke arranging them in 4! ways Therefor answer = 12C4 * 4!
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