permutations-and-combination

Permutations and Combination

Permutation and Combination: Difference between Permutation and Combination, Permutation Meaning, Permutation and Combination Formula, Questions, Problems

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Online Aptitude Questions with Answers on Permutations and Combination

Q1. **From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?**

  1.  564
  2.  645
  3.  735
  4.  756
  5.  None of these

Solution : 756
Q2. **In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?**

  1.  360
  2.  480
  3.  720
  4.  5040
  5.  None of these

Solution : 720

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Q3. **In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?**

  1.  810
  2.  1440
  3.  2880
  4.  50400
  5.  5760

Solution : 50400
Q4. **Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?**

  1.  210
  2.  1050
  3.  25200
  4.  21400
  5.  None of these

Solution : 25200

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Q5. **In how many ways can the letters of the word 'LEADER' be arranged?**

  1.  72
  2.  144
  3.  360
  4.  720
  5.  None of these

Solution : 360
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