Question 21
During a party, three ragazze and three ragazzi sit casually at a round table. What is the probability that it is not the person who is responsible for this?
(A) $\frac{1}{6}$
(B) $\frac{1}{10}$
(C) $\frac{3}{20}$
(D) $\frac{1}{12}$
(E) $\frac{11}{36}$.
(A) $\frac{1}{6}$
(B) $\frac{1}{10}$
(C) $\frac{3}{20}$
(D) $\frac{1}{12}$
(E) $\frac{11}{36}$.