Pablo plays 3 rounds of a game, in which his chances of winning each round are 1/3, 1/4, and 1/n, respectively. If n ≠ 0, what is the probability that Pablo wins the first two rounds, but loses the third? Choose the correct choice from the following
A) 1/9n	B) (n-1)/12n	C) 1/6n	D) (n+2)/3n	E) (3n-2)/2n
1/3 * 1/4 * (1-1/n)   = 1/12 * (n-1)/n   = (n-1)/12n   Answer - (n-1)/12n
<result>B</result>
Pablo plays 3 rounds of a game, in which his chances of winning each round are 1/3, 1/4, and 1/n, respectively. If n ≠ 0, what is the probability that Pablo wins the first two rounds, but loses the third?