Word from the letters of the word PROBABILITY are formed by takin | Filo
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Class 11



Permutations and Combinations

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Word from the letters of the word are formed by taking all letters at a time.The probability that both are not together and both are not together is

  1. none of these
Correct Answer: Option(b)
Let us treat and together.
Total letters know
no. of ways
Total ways
So probability
Hence, the answer is
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