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Geometry, Data Analysis


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Three research departments have 6, 10, and 9 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?

May 12th, 2015

For the first department (with 6 people), we have 6 possibilities for the delegate, and then a remaining 5 for the alternate, so that's 6*5 total combinations. Use the same logic for the departments with 10 and 9 people.

The total number of combinations is therefore 6*5*10*9*9*8= 194400 ways

May 12th, 2015

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May 12th, 2015
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May 12th, 2015
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