JEE MATHEMATICS MCQ: PERMUTATIONS

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How many numbers with no more than three digits can be formed using only the digits 1 through 7 with no digit used more than once in a given number?

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Correct option: A

259

Option A (259) is correct because it sums the number of 1-digit, 2-digit, and 3-digit numbers that can be formed using digits 1 through 7 without repetition.

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