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19 October, 05:41

Two captains need to be chosen from a fifteen person team. if the captain positions are identical, how many different ways can the two captains be selected?

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  1. 19 October, 05:47
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    In 105 different ways

    Step-by-step explanation:

    To solve this problem we will use combinations without repetitions.

    C (n k) = V (n k) / k!

    In this case n = 15 and k = 2

    C (15 2) = V (15 2) / 2! = 15 · 14 / 2 = 15 · 7 = 105

    The two captains can be selected in the 105 different ways (combinations).

    God with you!
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