Permutation: n Different Things Taken All at a Time When All Are Not Different.
How many ways...
Question
How many ways are there to arrange the letters in the word GARDEN with the vowels in alphabetical order ?
A
120
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B
480
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C
360
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D
240
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Solution
The correct option is C 360 The total number of ways in which all letters can be arranged in 6! ways. There are two vowels in the word GARDEN. The total number of ways in which these two vowels can be arranged is 2! Hence, the total number of required ways =6!2!=360