Question

Advertisment can be arrange in how many waysvowels always come toghether

Answer 1

First, we treat the five vowels AEEEI as a unit; 
these can be arranged in 5!/3! = 20 ways. 

Next, we arrange the 8 consonants (noting T occurs twice) along with the one unit of vowels (temporarily assuming the vowels are in a fixed arrangement); this can be done in 9!/2! ways. 

Overall, there are 20 * 9!/2! = 10! arrangements. 

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