JEE MATHEMATICS MCQ: PERMUTATIONS

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The number of numbers of 9 distinct digits such that all the digits in the first four places are less than the digit in the middle and all the digits in the last four places are greater than that in the middle is

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Correct option: B

576

Option B (576) is correct because the middle digit must be 5, and the remaining digits can be arranged in 4! * 4! ways.

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