zhtkevin1,你好:解:设甲带了7X元,乙带了6X元(7X-50):(6X-60)=3:214X-100=18X-1804X=80X=20甲余下:7×20-50=90(元)乙余下:6×20-60=60(元)
设甲带了7X元,则乙6X(7X-50) : (6X-60) = 3 :2解得X=20所以剩下90和60...
甲X,乙Y;x/y=7/6(x-50)/(y-60)=3/2;X=140,Y=120