(1+10%)*0.9=0.99
顾客享受的价格为原来的99%
某店主人把一件商品涨价10%出售,卖出时又给给顾客答9折,按涨价前的价格,顾客是既享受
某店主人把一件商品涨价10%出售,卖出时又给给顾客答9折,按涨价前的价格,顾客是既享受
数学人气:757 ℃时间:2020-05-09 13:54:46
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