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How many four digit numbers can be formed from the numbers 1,3,4,6,8 and if repetition of number is not allowed?

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  1. 19 April, 15:46
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    A lot ...

    Total even numbers: 4⋅6⋅5⋅4=480 4⋅6⋅5⋅4=480

    Total 3-digit even numbers: 3⋅5⋅4⋅1=60 3⋅5⋅4⋅1=60

    Total 4-digit even numbers: 480-60=420
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