An organization will give a prize to a local artist. The artist will be randomly chosen from among 3 painters, 7 sculptors, and 12 photographers. What is the probability that the artist chosen will be a painter or a sculptor?
So we have 10 painters and sculptors all together. There are also 22 people in total. That means we have a 10/22 chance it will be one of those artists. This fraction can be reduced to 5/11.