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Permutations and Combinations question

2023 · 13 Apr · Shift 1 · Q40
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Permutations and Combinations question

2023 · 13 Apr · Shift 1 · Q40

JEE MainMathematicsPermutations and CombinationsNumerical+4 / −1
The number of seven digit positive integers formed using the digits 1,2,31,2,31,2,3 and 444 only and sum of the digits equal to 121212 is ‾\underline{\hspace{2cm}}​.
Numerical answer
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