msqe2009 stats

Posted by priyanka p on
URL: http://discussion-forum.276.s1.nabble.com/msqe2009-stats-tp4875684.html

in how many ways can three persons, each throwing a single die once , make a score of 8?  options are (A) 5  (B) 15  (C)  21  (D) 30                       my answer is option c that is 15 ways,  explanation goes like this, ( 1,6,1) in 3 ways (1,5,2) in 3 ways , (1,4,3) in 3 ways , (2,2,4) in 3 ways and (3,3,2) in 3 ways.   so answer cums to be 15 ways in total. is it correct??