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Consider the word ANNAMALAI1. How many new words can be formed using the given words? 2. Among the new words how many of them will begin with A and end with I. |
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Answer» 1. In the word ANNAMALAI there are 9 letters, of which A appears 4 times, N appears 2 times and the rest ail are different. Therefore the total number of ways is \(\frac{9!}{4! \times 2!}\) = 7560. 2. The word start with A and end in I, this can be done in \(\frac{7!}{3! \times 2!}\) = 420. |
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