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17 September, 00:41

In how many ways can a caravan of 8 covered wagons from arizona be arranged in a circle?

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  1. 17 September, 02:36
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    2520 ways.

    Step-by-step explanation:

    The formula for n wagons is (n - 1) ! / 2. We divide by 2 because all items are the same (like for example a necklace) and a clockwise arrangement is the same as a counterclockwise.

    For 8 wagons the number of arrangements is (8 - 1) ! / 2

    = 7! / 2

    = 2520 ways.
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