Out of the 120 people who attended the party, 1/3 are men while half are women. The rest are children. How many children attended the party? Let's be accurate as possible.
There were 120 / 3 = 40 men at the party. There were 120 / 2 = 60 women at the party. So, there were 40 + 60 = 100 men and women at the party. Thus, 120 - 100 = 20 were children.
The answer: 20.