If six persons sit around a round table the probability that some specified three of them are always together is  Choose the most appropriate option:  A) 1/5  B) 1/20  C) 3/10  D) 4/10  E) 5/20
six persons and three grouped =&gt; 3! 3! ways   P = (3!3!)5! == 3/10   ANSWER 3/10
<result>C</result>
If six persons sit around a round table the probability that some specified three of them are always together is