【xingcelianxiti】
BG真人版1、jia、yi、bingsangecangku,jia280xiang,yi210xiang,bing180xiang,bingfenjijiaheyihou,jiashiyide1.5bei,wen: bingfenjijiaduoshaoxiang?
a.58 b.36 c.122 d.144
2、liangtongwanquanyiyangdehuaxueshiji,fenbieyongdiaozongliangde25%he60%hou,shengxiadeliantongfenbiezhong80qiankehe48.5qianke。wentongdezhongliangweiduoshaoqianke?
a.10 b.12.5 c.15 d.17.5
3、 yixianggongcheng,jiayirenzuowanxu30tian,jia、yihezuowanchengxu18tian,yi、binghezuowanchengxuyao15tian。jia、yi、bingsanrengongtongwanchenggaigongchengxu:
a.8tian b.9tian c.10tian d.12tian
【cankaodaanyujiexi】
1、【daan】c。zhonggongjiexi: fangfayi,shebingfenjijiaxxiang,ze280+x=1.5×(210+180-x),jiedex=122,daanweic。
方法二,最后甲是乙的BG真人版倍,所以甲最后的箱数是3的倍数。甲开始时有280箱,280除以3余数为1,所以丙给甲的箱数除以3余数应是2,选项中只有C符合。
2、【daan】b。zhonggongjiexi: huaxueshijidezhongliangwei(80-48.5)÷(75%-40%)=90qianke,zetongdezhongliangwei80-90×75%=12.5qianke。
BG真人版3、【daan】c。zhonggongjiexi:
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