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ARGUMENT- Find the no. of words formed frm. the word ARGUMENT starting and ending with a consonant.
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there are 5 consonents .. chosing one of them to be at left most place in 5 ways then chosing one to be at the right most place in 4 ways now we are left with 3 consonents and 3 vovels = total 6 letters..which can be arranged in between in 6! ways . hence total words = 5 x 4 x 6! .= 20 x 720 = 14400 |
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