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If the letters of the word PROBABILITY a...

If the letters of the word PROBABILITY are written down at random in a row, the probability that two B-s are retogether is

A

`2/11`

B

`10/11`

C

`3/11`

D

`6/11`

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The correct Answer is:
A
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MCGROW HILL PUBLICATION-PROBABILITY-Exercises (Level 1 Single Correct Answer)
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  11. Two natural numbers x and y are chosen at random from the set {1,2,3,4...

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  13. A positive integer is chosen at random. The probability that the sum o...

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  14. Consider a lottery that sells n^2 tickets and awards n prizes. If one ...

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  15. Let x be a non-zero real number. A determinant is chosen from the set ...

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  16. A dice is rolled three times, find the probability of getting a larger...

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  20. Suppose A is a set containing n elements. Two subsets P and Q of A are...

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