图书馆里有文艺书400本,比科技书多1/3,科技书有多少本?
图书馆里有文艺书400本,比科技书多
,科技书有多少本?
数学人气:525 ℃时间:2020-03-29 21:53:38
优质解答
400÷(1+
)
=400
÷=300(本)
答:科技书友300本.
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