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प्रश्न
How many different words can be formed from the letters of the word 'GANESHPURI'? In how many of these words:
the letter G always occupies the first place?
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उत्तर
The word GANESHPURI consists of 10 distinct letters.
Number of letters = 10!
If we fix the first letter as G, the remaining 9 letters can be arranged in 9! ways to form the words.
∴ Number of words starting with the letter G = 9!
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