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Q: Out of seven consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed ?

  • 1
    25200
  • 2
    25000
  • 3
    25225
  • 4
    24752
  • Show Answer
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Answer : 1. "25200"
Explanation :

Answer: A) 25200 Explanation: Number of ways of selecting (3 consonants out of 7) and (2 vowels out of 4) =( C37×C24 ) = 210. Number of groups, each having 3 consonants and 2 vowels =210 Each group contains 5 letters. Number of ways of arranging 5 letters among themselves = 5! = 120.  Required number of words = (210 x 120) = 25200.

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