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15 April, 10:15

How many different ways can a director select 4 actors from a group of 20 actors?

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  1. 15 April, 10:40
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    Number of ways = 20C4

    Number of ways = (20 x 19 x 18 x 17) : (4 x 3 x 2 x 1)

    Number of ways = 116280 : 24

    Number of ways = 4845.

    Answer: 4845
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