1600/(1+1+2/7)=700头(去年的头数)
1600-700=900头(今年的头数)
900-700=200头(今年比去年增加的头数)
牛村今年和去年共养牛1600头,比去年增加了7分之2,今年比去年增加( )头?
牛村今年和去年共养牛1600头,比去年增加了7分之2,今年比去年增加( )头?
数学人气:466 ℃时间:2020-01-25 16:36:20
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