Subject
Quantitative Aptitude
Topic
Permutation & Combination
In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?
In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?
ক)
810খ)
1440গ)
2880ঘ)
50400Explanation
In the word 'CORPORATION', we treat the vowels OOAIO as one letter. Thus, we have CRPRTN (OOAIO). This has 7 (6 + 1) letters of which R occurs 2 times and the rest are different. Number of ways arranging these letters =7!/ 2!= 2520. Now, 5 vowels in which O occurs 3 times and the rest are different, can be arranged In 5!/ 3! = 20 ways. Required number of ways = (2520 x 20) = 50400.Related questions
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