If the four letter words (need not be meaningful) are to be formed using the letters from the word "MEDITERRANEAN" such that the first letter is R and the fourth letter is E , then the total number of all such words is :

Question

If the four letter words (need not be meaningful) are to be formed using the letters from the word "MEDITERRANEAN" such that the first letter is R and the fourth letter is E , then the total number of all such words is :, 110, 59, 11 ! 2 ! 3, 56

MARKS App · Accepted Answer

M , EEE , D , I , T , RR , AA , NN R _ _ _ E _ Two empty places can filled with identical letters EE , AA , NN ⇒ 3 ways Two empty places, can be filled with distinct letters M , E , D , I , T , R , A , N ⇒ 8 P 2 ∴ Number of words 3 + 8 P 2 = 59

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