设:黄瓜原来x千克,则莲菜385-x千克。(1-2/3)x=(1-3/5)(385-x)1/3x=2/5(385-x)1/3x+2/5x=15411/15x=154x=210莲菜原来:385-210=175(千克)希望对你有所帮助 还望采纳~~