5: 15.6÷0.65=24(件)
6: 18.6÷0.4=46.5(元)
22÷0.5=44(元)
46.5>44,第二种便宜
7:(68.8-4.8)÷3.2
= 64÷3.2
= 20(层)
20+1=21(层)
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5: 15.6÷0.65=24(件)
6: 18.6÷0.4=46.5(元)
22÷0.5=44(元)
46.5>44,第二种便宜
7:(68.8-4.8)÷3.2
= 64÷3.2
= 20(层)
20+1=21(层)
http://m.ksjqmj.com/wunianjidaan/2341.html
推荐访问