<PRE><B>Question 877167</B>
The original ratio of 2:3 means x/y = 2/3


Add 4 to vanilla to get the ratio of 3:4, so, (x+4)/y = 3/4



-------------------------------------------------------



x/y = 2/3


x = (2/3)*y


----------------


(x+4)/y = 3/4


4(x+4) = 3y


4x+16 = 3y


4(2/3)y+16 = 3y


(8/3)y+16 = 3y


16 = 3y - (8/3)y


16 = (9/3)y - (8/3)y


16 = [(9/3) - (8/3)]y


16 = [(9-8)/3]y


16 = (1/3)y


16*3 = y


48 = y


y = 48


---------------


x = (2/3)*y


x = (2/3)*48


x = 96/3


x = 32


---------------


They sold 32 vanilla cones.</PRE>