Question 736992
let b = # of boys, g = # of girls


b+g = 50 ---> g = 50-b


2/3 = b/g


2/3 = b/(50-b)


2(50-b) = 3b


100 - 2b = 3b


-2b = 3b-100


-2b-3b = -100


-5b = -100


b = (-100)/(-5)


b = 20


g = 50 - b


g = 50 - 20


g = 30


There are 30 girls and 50 members total


So the ratio is 30:50 ---> <font color="red">3:5</font>