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17 May, 07:15

Calculate the number of ways in which four paintings can be awarded first, second, third, and fourth prizes at an art competition in which a total of 30 paintings are displayed

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  1. 17 May, 07:17
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    657720 ways

    Step-by-step explanation:

    This is the number pf permutations of 4 from 30:-

    = 30! / (30 - 4) !

    = 30! / 26!

    = 30*29*28*27
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