早教吧 育儿知识 作业答案 考试题库 百科 知识分享

英语智力问题最好马上Maryistwelveyearsold.Herfatherisfourtimesasoldasher.Hergrandfatheristwiceasoldasherfather.Howoldishergrandfather?

题目详情
英语智力问题 最好马上
Mary is twelve years old. Her father is four times as old as her.Her grandfather is twice as old as her father.How old is her grandfather?
▼优质解答
答案和解析
Mary12岁,她的爸爸是她年龄的四倍,即12乘以3为36,她爷爷是她爸爸的2倍,即为72岁.