∵(x-y):y=2:3,∴2y=3(x-y)2y=3x-3y2y+3y=3x5y=3xy=(3/5)x∴2x+5y=5x, 3x-2y=(9/5)x∴(2x+5y)/(3x-2y)=(5x)/[(9/5)x]=25/9
(x-y):y=2:33(x-y)=2y3x-3y=2y3x=5yx/y=5/3(2x+5y)/(3x-2y)=(2x+3x)/(5y-2y)=5x/3y=(5/3)*(5/3)=5/3x5/3=25/9