A box contains blue chips and red chips. A person selects two chips without replacement. If the probability of selecting a blue chip and then a red chip is 12/45 and the probability of selecting a blue chip on the first draw is 6/10, find the probability of selecting the red chip on the second draw, given that the first chip selected was a blue chip? Answer with one of these: 4/9 or 8/9 or 3/5 or 3/10