如果2斤油可换5斤肉,7斤肉可换12斤鱼,10斤鱼可换21斤豆,那么27斤豆可换( )油。

作者: tihaiku 人气: - 评论: 0
问题 如果2斤油可换5斤肉,7斤肉可换12斤鱼,10斤鱼可换21斤豆,那么27斤豆可换( )油。
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答案 3
解析 解析:14 斤油=35 斤肉=60 斤鱼=126 斤豆所以 14/X=126/27,解得 X=3

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