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Mathematics 10 Online
OpenStudy (anonymous):

how many three-digits even numbers can be formed using the digits 1,2,3,....,9 without repetitions? answer plzzzz

OpenStudy (anonymous):

how many options do you have for the hundred's? The tens? the ones?

OpenStudy (anonymous):

8*7*4 = 224

OpenStudy (irishboy123):

yes , pick the trailing even digit first, ie has to be 2,4,6, or 8 then you perm 2 from 8 for the rest so \(4 * P^8_2\)

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