A bag contains 5 oranges, 4 bananas, and 3 apples. If Mr. Hall reaches in the bag and chooses one piece of fruit at random, what is the probability that he will NOT choose an orange?
There are 5+4+3 = 12 fruits in total. There are 4+3 = 7 non orange fruits. Probability of not choosing an orange = number of non-orange objects/total number of objects = 7/12.
