Three research departments have 10,9, and 7 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?

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25-11-2016
Mathematics

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Three research departments have 10,9, and 7 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?

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Anonymous Anonymous · Answer 1 · 2016-11-26T09:32:08-05:00

Anonymous Anonymous

26-11-2016

Order matters if you are picking a person as a delegate and another as alternate.

no. of ways = (109) (98) (7*6) = 272160

Therefore, there are 272160 ways for the procedure to be done.

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