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judy is 10 and her sister is 12 .in how many years will their ages total 38
题目详情
judy is 10 and her sister is 12 .in how many years will their ages total 38
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答案和解析
judy 10岁
她姐姐 12岁
几年后他们的年龄和为 38
(38-10-12)/2 = 8
8年后
她姐姐 12岁
几年后他们的年龄和为 38
(38-10-12)/2 = 8
8年后
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