permutation and combination
Asked by | 17th Mar, 2009, 11:48: PM
There are 8 letters in the word EQUATION.
Out of these 5 are vowels and 3 are consonants
The extreme left place has to be filled by a consonant , this can be done in 5 ways.
Thwe extreme right place has to be filled by a consonant, this can be done in 3 ways.
The remaining 6 places can be filled by the remaining 6 letters( after selecting 2 letters for the exteme left and extremem right place respectively)in P(6,6)=6! ways.
by the fundamental principal of counting the total number of ways as required in the question is
Pl send each question seperately.
Answered by | 18th Mar, 2009, 10:16: PM
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