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Eduncle posted an MCQ
October 19, 2019 • 17:12 pm 0 points
  • CSIR NET
  • Life Sciences

The number of three English letter words, having at least one consonant, but not having two consecutive consonants, is

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    Eduncle Best Answer

    The letters can be arranged as CVC, CVV, VCV, VVC (no 2 consonants are together so CCC, CCV, VCC are not considered) VVV is not considered as at least one consonant should be present Ways of arranging CVC = 21 × 5 × 21 = 2205 (as there are 21 consonants and 5).

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