P and Q are two friends standing in a circular arrangement with 10 more people Find the probability ...........

Quantitative Aptitude ( CCS) Probability

P and Q are two friends standing in a circular arrangement with 10 more people. Find the probability that exactly 3 persons are seated between P and Q?

5/11

4/11

2/11

3/11

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Explanation:

Answer – 2/11
Explanation :
Fix P at one point then number of places where B can be seated is 11.
Now, exactly three persons can be seated between P and Q, so only two places where Q can be seated. So, p = 2/11