jack is twice as old as Bill,who is 8 years younger lhan Ben ,who is 4years younger than Ted,who ishalf as old again as jack.How old is Bill?谁能算出来 请速回.
问题描述：
jack is twice as old as Bill,who is 8 years younger lhan Ben ,who is 4years younger than Ted,who is
half as old again as jack.How old is Bill?谁能算出来 请速回.
答
Bill 4岁
答
楼上怎么算的？式子都列错了吧？
half as old again貌似是1.5倍
so Bill is 6
答
捷克年龄是比尔的两倍，比尔比班小八岁，班比坦的小四岁，坦的比捷克大他（捷克）岁数的一半，问比尔几岁？
Ted is half as old as Jack坦的是捷克的一半大
Ted is as old again as Jack坦的毕捷克大一倍
Ted is half as old again as Jack坦的比捷克大他的一半
因此：捷克12 比尔6 班14 坦的18
答
6
答
Suppose Jack is x years' old,
then Ted is x/2; Ben is x/2-4; Bill is x/2-4-8;
so we can get:x=3(x/2-4-8)
x=72
Bill is 24