7/10 of the people in the clubhouse are adults. If there are 48 more adults than children, how many are there in the clubhouse?
If 7/10 are adults, then 3/10 are children
ratio of adults : children = 7 : 3 = 7x : 3x
7x - 3x = 48
x = 12
3x = 36
7x = 84
10x = 120
there are 120 at the clubhouse, of which 84 are adults and 36 are children