甲、乙两商店某种铅笔标价都是一元,学生小王欲购买这种铅笔,发

甲、乙两商店某种铅笔标价都是一元,学生小王欲购买这种铅笔,发现甲、乙两商店都让利优惠,甲店实行每买5枝送一枝(不足5枝不送);乙店实行买4枝或4枝以上打8.5折,小王买了13枝这种铅笔,最少需花___________元

 

答案

10.95元

解析:略

 

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