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Originally Posted by
Rakibul Raju
If ‘12’ persons are seated at a round table, what is the probability that two particulars persons
sit together?
We don't need to apply any counting techniques if we look at it this way: What is the probability that Ann and Bea sit together.
Let's just focus on Ann for a moment.
What is the probability that Bea is sitting beside her?
Well, there are 11 remaining seats and 2 of them are beside Ann.
So, P( Ann and Bea sit together) = 2/11
Cheers,
Brent