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91- 6303239042 🏹Dussehra (17-20 Oct)

Question 149

If the letters of the word WISDOM are permuted at random, then the probability that the vowels do not cometogether is

Solution

Total permutation possible = 6!=720

Number of combination in which vowels (O,I) are together= 5!(2!)=240

Hence the number of permutation in which vowels are not together =720-240=480

Probability= 480/720=2/3

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