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JEE Main Mathematics question

MathematicsPermutations and CombinationsJEE Main

The number of four-letter words that can be formed (the words need not be meaningful) using the letters of the word MEDITERRANEAN such that the first letter is E and the last letter is R, is

Answer: (B)

Solution

MEDITERRANEAN has , , , and once each; after using first and last, the pool for the two middle places is . This pool has

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Question ID VK-020547