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denobop
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A cupboard contains 5 pairs of shoes, each of a different style. How many ways are there to select 4 of the shoes from the cupboard so that the selection contains exactly one matching pair? Note that each pair of shoes consists of distinguishable left and right foot.
 one year ago
 one year ago
denobop Group Title
A cupboard contains 5 pairs of shoes, each of a different style. How many ways are there to select 4 of the shoes from the cupboard so that the selection contains exactly one matching pair? Note that each pair of shoes consists of distinguishable left and right foot.
 one year ago
 one year ago

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satellite73 Group TitleBest ResponseYou've already chosen the best response.0
there are 5 ways to choose the matching pair then once the matching pair is chosen, you have 8 other shoes to choose from finally you have 6 shoes to choose from (because you cannot choose the match to the second shoe) so it is \(5\times 8\times 6\) by the counting principle, except that you have divide by 2 because the two odd shoes can be chosen in any order to i believe your answer is 120
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.0
sounds good to me anyway
 one year ago

razor99 Group TitleBest ResponseYou've already chosen the best response.0
hello u there
 one year ago
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