The number of ways letters can be arranged word rdquo DEALER rdquo such that vowels occupy at the od...........

Quantitative Aptitude (CDS) Permutation & Combination

The number of ways letters can be arranged word” DEALER”, such that vowels occupy at the odd position?

6 letters
3 vowels, 3 consonant
Three odd positions 3 ways
3 ways consonant
3! ×3!
=6×6
=36

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