Mrs.Tan is preparing sweets for a party. Ratio of the number of adults to number of childres attending is 2:1. Among the children, the number of boys and girls attending are the same. A total of 240 sweets are prepared so that each adult gets 1 sweet and each child gets 3 sweets.
1. What fraction of people attending the party are girls?
2. How many girls are attending the party?