A grocery buys apples at the regular price of 38 cents per pound

问题描述:

A grocery buys apples at the regular price of 38 cents per pound
A The amount saved by the grocer on a purchase of 100 pounds of apples if the price per pound is x cents less than the regular price
B The additional amount paid by the grocer on a purchase of 100 pounds of apples if the prices per pound is X cents more than the regular price
就是比较A 和B 的大小
答案选C(就是A 和B是相等的)
我个人认为是D

就是选C
A是100x..就是跌价x/pound,100pound省多少钱
B也是100x啊...涨价每磅x,100磅多付多少
怎么会是别的选项呢...