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JEE Main Mathematics question

MathematicsPermutations and CombinationsJEE Main

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

Answer: (D)

Solution

Count the permutations before : first letter is smaller than : . Second letter: among the letters smaller than are : ; third

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Question ID VK-020778