购买哪种瓶装的酱油比较合算?急,
问题描述:
购买哪种瓶装的酱油比较合算?急,
300ml(3元)380ml(3.5元)1L(9.00元)要算式.
答
300ml=0.3L
380ml=0.38L
3/0.3=10元/L
3.5/0.38=9.21元/L
9/1=9元/L