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The number of permutations by taking all letters and keeping the vowels of the word COMBINE in the odd places is
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The correct answer is:
576
Hints: Vowels : O, I, E
No. of Odd place : 4
No of ways $={ }^4 \mathrm{P}_3 \times 4 !=576$
No. of Odd place : 4
No of ways $={ }^4 \mathrm{P}_3 \times 4 !=576$
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