Question

12 persons are seated around a round table. What is the probability that two particular persons sit together ?

Answer 1

Lets draw a diagram first looks like the sun! Anyways, so probability is just \[Probability = \frac{ \text{number of favourable outcomes} }{\text {number of possible outcomes} }\]

Answer 2

possible outcomes is 11!

Answer 3

No. of favorable outcomes?

Answer 4

It says, that two persons sit together, 11! is the number of ways they can sit around the table but it's not for two people right, so we have 10! instead

Answer 5

And number of possible outcomes is 11

Answer 6

But answer is 2/11

Answer 7

11!*

Answer 8

Yes so \[\frac{ 10! \times 2! }{ 11! }\]

Answer 9

Oh okay. thank you @Astrophysics :)