iiibrahimaa77 iiibrahimaa77

18-03-2017
Mathematics

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In how many ways can 4 singers be selected from 7 who came to an audition

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hannahl52 hannahl52

18-03-2017

This math is known as permutations- the arrangement of a set of objects. A way that I use to solve these problems was by just multiplying the numbers, so the singer's can be selected in 28 ways.

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