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题目如下

2025-03-17 04:47:37

推荐回答（2个）

回答1：

每个书包的进价为120x50%=60元
为保证一个书包赚的钱不少于30元,则每个书包的最低售价为60+30=90元
折扣为90÷120==0.75=75%,即75折
答：打75折可以保证一个书包赚的钱不少于30元

回答2：

120/2+30=90
90/120=75%
打75折。

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