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The number of four letter words that can be formed using the letters of the word is :
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Case 1: If all four letters are different then the number of words
Case 2: If 2 letters are R and other 2 different letters are chosen from B, A, C, K then the number of words
Case 3: If 2 letters are A and other 2 different letters are chosen from B,R,C,K then the number of words
Case 4: when word is formed using and
Then the number of four-letter words that can be formed
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Question Text | The number of four letter words that can be formed using the letters of the word is : |
Answer Type | Text solution:1 |
Upvotes | 150 |