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JEE MATHEMATICS MCQ: PERMUTATIONS

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Application +4 | -1

There are three copies each of 4 different books. The number of ways in which they be arranged on a shelf is

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Correct option: A

\frac{12 !}{(3 !)^4}

Option A (

\frac{{12 !}}{{(3 !)^4}}

) is correct because it accounts for the repetition of each of the 4 different books.

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