新华书店运来小说2800册,比运进的科技书的87.5％少175册,书店运进科技书多少本?
新华书店运来小说2800册,比运进的科技书的87.5％少175册,书店运进科技书多少本?
其他人气：696 ℃时间：2019-11-07 20:12:26
优质解答
设科技书X本.根据题意,0.875X-175=2800 解得X=3400本
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