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How many arrangements of the letters in the word TRANCE are there if the vowels must always be together?

Respuesta :

[tex] \text{Consider the word TRANCE}\\ \\ \text{there are total 6 letters out of which 2 are vowels A and E.}\\ \\ \text{now since the vowels must be together, so they can be arranged }2! \text{ ways}\\ \\ \text{now if we consider AE as one letter, the rest of 4 letter along with}\\ \text{AE can be arranged in }5! \text{ ways.}\\ \\ \text{hence the total number of arrangements with vowels always together are:}\\ \\ =5!\times 2!\\ \\ =120\times 2\\ \\ =240 [/tex]

Total number of arrangements= 240