JEE MATHEMATICS MCQ: PERMUTATIONS

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The number of numbers that can be formed by using digits 1,2,3,4,3,2,1 so that odd digits always occupy odd places

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Correct option: C

The correct answer is 18 because it is the number of numbers that can be formed using the digits 1,2,3,4,3,2,1 such that odd digits always occupy odd places.

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