In 2004, there were some kids at a cookout. In 2005, half the number of kids came to the cookout as compared to 2004. In 2006, 2/3 as many kids came to the cookout as in 2005. If there were 20 kids at the cookout in 2006, how many kids came to the cookout in 2004? Let's answer step by step:
In 2005, 20 / 2 * 3 = 30 kids came to the cookout. In 2004, 30 * 2 = 60 kids came to the cookout. The answer: 60.