How many words each of two vowels and three consonants can be formed from the letters of the word "UNIVERSAL" ?
The number of ways of selecting 2 vowels from U,I,A,E =Â $$4_{c_2}$$ = 6
The number of ways of selecting 3 consonants from N,V,R,S,L =Â $$5_{c_3}$$ = 10
After selecting you can arrange them is 5! ways.
Total number of words = 6*10*120 = 7200
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