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JEE MATHEMATICS MCQ: PERMUTATIONS

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Application +4 | -1

Number of numbers between 5000 and 10000 by using the digits

1,3,5,7,9

without repetition is equal to

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Correct option: B

72

Option B (72) is correct because there are 3 choices for the first digit (5, 7, or 9) and then 4! ways to arrange the remaining 4 digits.

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