
each adult gets 1, each child gets 3
ratio is 1/3
1 x
 =  ratio of adult to total, to find number of adults getting a sweet
4 240
4x = 240 crossmultiplied
x = 60 divided
That means there were 60 adults.
Ratio of adults to children is 2/1
If there were 60 adults, then there were 30 children.
If the boys and girls were the same, then there were 15 boys and 15 girls.
1.) 15/90 = 1/6 attending the party were (nonadult) girls
2.) 15 girls were attending the party
 Proof
