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(i) Find the number of four letter word that can be formed from the letters of the word HISTORY. ( each letter to be used at most once) (ii) How many contain both vowels?

(i) Find the number of four letter word that can be formed from the letters of the word HISTORY. ( each letter to be used at most once)
(ii) How many contain both vowels?

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
5 years ago
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