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【简答题】
某商场今年1-5月份所有商品销售额统计表如下表,其中服装部各月销售额占商场当月商品销售额的百分比条形统计图如图所示.已知该商场1-5月份所有商品销售总额为350万元,根据图表信息: 某商场今年1月-5月份所有商品销售额统计表 时间(月份) 1月 2月 3月 4月 5月 销售额(万元) 90 85 60 a 60 (1)求4月份的商品销售额a; (2)求5月份商场服装部的销售额; (3)小明观察条形统计图后认为,5月份服装部的销售额比4月份减少了,你同意他的看法吗?为什么?
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