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Permutations and Combinations · 2018 · 15 Apr · Shift 1

1 Mathematics questions from this JEE Main paper
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Permutations and Combinations · 2018 · 15 Apr · Shift 1

1 Mathematics questions from this JEE Main paper

  1. Q26.n − digit numbers are formed using only three digits 2, 5 and 7. The smallest value of n for which 900 such distinct numbers can be formed, is :
    Mathematics · Permutations and Combinations · MCQ