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Permutations and Combinations · 2023 · 10 Apr · Shift 1

2 Mathematics questions from this JEE Main paper
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Permutations and Combinations · 2023 · 10 Apr · Shift 1

2 Mathematics questions from this JEE Main paper

  1. Q43.The number of permutations, of the digits 1, 2, 3, ..., 7 without repetition, which neither contain the string 153 nor the string 2467, is ​.
    Mathematics · Permutations and Combinations · Numerical
  2. Q45.Some couples participated in a mixed doubles badminton tournament. If the number of matches played, so that no couple played in a match, is 840, then the total number of persons, who participated in the tournament, is ​…
    Mathematics · Permutations and Combinations · Numerical