The first thing you have to do is guess. Suppose there was 3 adults and 13 kids. That would be $78 for kids and $27 for adults, but thats only 105. So we guess again. Theres 11 adults and 5 kids. That would be $30 for kids and $99. Thosee together would be $129. So there were 11 adults that went to the movie.