The number of words of 4 consonants and 3 vowels can be made from 15 consonants and 5 vowels, if all the letters are dif

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answerhappygod
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The number of words of 4 consonants and 3 vowels can be made from 15 consonants and 5 vowels, if all the letters are dif

Post by answerhappygod »

a) 3! * 12C5
b) 16C4 * 4C4
c) 15! * 4
d) 15C4 * 5C3 * 7!
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