卖出的风扇数量是洗衣机和彩电总数的300/（150+250）=3/4
卖出的空调数量是卖出全部家电总数的120/（120+300+150+250+180）=3/25
风扇300台,洗衣机150台,彩电250台,卖出的风扇数量是洗衣机和彩电总数的几分之几
风扇300台,洗衣机150台,彩电250台,卖出的风扇数量是洗衣机和彩电总数的几分之几
还有冰箱180台.空调120台,卖出的空调数量是卖出全部家电总数的几分之几
还有冰箱180台.空调120台,卖出的空调数量是卖出全部家电总数的几分之几
数学人气：687 ℃时间：2020-05-11 16:09:45
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