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小明的课外书数量是小亮的3倍,比小亮多了3O8本,求小明和小亮各有多少本课外书?
小明的课外书数量是小亮的3倍,比小亮多了3O8本,求小明和小亮各有多少本课外书?
2025-03-29 10:27:58
推荐回答(1个)
回答(1):
这是一道差倍问题,小亮本数看作1倍,小明本数就是3倍,正好相差了308本,根据两数差÷倍数差=1倍数,列式308÷(3-1)=308÷2=154本,也就是小亮的本数,那么小明有154×3=462本。
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