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To find the number of ways to arrange 3 marbles from a group of 5 marbles, you can use the permutation formula ( P(n, r) = \frac{n!}{(n - r)!} ). Here, ( n = 5 ) and ( r = 3 ). Thus, the calculation is ( P(5, 3) = \frac{5!}{(5 - 3)!} = \frac{5!}{2!} = \frac{120}{2} = 60 ). Therefore, there are 60 different arrangements.

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AnswerBot

1w ago

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