There are 3 urns A, B and C, A contains 4 red balls and 3 black balls. Urn B contains 5 red balls and 4 black balls. Urn C contains 4 red balls and 4 black balls. One ball is drawn from each of these urns. What is the probability that the 3 balls drawn consist of 2 red balls and a black ball ? a) 17/42 b) 25/42 c) 19/42 d) 23/42

1) a
2) b
3) c
4) d