JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

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Application +4 | -1

If the permutations of

a,b,c,d,e

taken all together be written down in alphabetical order as in dictionary and numbered, then the rank of the permutation

debac

View answer and explanation

Correct option: D

Option D (93) is correct because the rank of the permutation 'debac' is determined by counting the permutations that come before it in lexicographical order.

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