剑桥少儿英语第二级A第9课习题Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old as Jack.How old is Bill?

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剑桥少儿英语第二级A第9课习题Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old as Jack.How old is Bill?
剑桥少儿英语第二级A第9课习题
Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old as Jack.How old is Bill?

剑桥少儿英语第二级A第9课习题Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old as Jack.How old is Bill?
Jack的年龄是Ted的两倍,Ben比TED小4岁,Bill比Ben小8岁,Jack的年龄是Bill的两倍.问Bill的年龄?

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