Question 1108820
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1.  The given word  NEIGHBOUR  has 9 letters, all of them are different.

    From 9 different letters, you can make 9*8*7 = 504 different 3-letter words.



2.  The word  NEIGHBOUR  has 4 vowels, all of them are different.

    From 4 different vowels, you can make 4*3*2 = 24 different 3-letter words consisting of 3 vowels each.



3.  Therefore, the probability ubder the question is  {{{24/504}}} = {{{1/21}}} = 0.0476 = 4.76%  (approximately).
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