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Assertioin: Number of words of 5 letters...

Assertioin: Number of words of 5 letters that can be formed with 10 different letters so that at least one letter is repeated in the word is `10^5-^10P_5` Reason:Number of words of 5 letters which can be formed with 10 different letters when repetiton is allowed, does not include the number of words of 5 letters that are different. (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not the correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

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