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Permutations and Combinations · 2020 · 5 Sep · Shift 1

2 Mathematics questions from this JEE Main paper
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Permutations and Combinations · 2020 · 5 Sep · Shift 1

2 Mathematics questions from this JEE Main paper

  1. Q20.The number of words, with or without meaning, that can be formed by taking 4 letters at a time from the letters of the word ’SYLLABUS’ such that two letters are distinct and two letters are alike, is :
    Mathematics · Permutations and Combinations · Numerical
  2. Q25.Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three or a five, is ​.
    Mathematics · Permutations and Combinations · Numerical