jack is twice as bill.
问题描述：
jack is twice as bill.
who is eight years younger than ben.
who is four yearsyoungerthan ted.
who is half as old again as jack.
how old is bill?
write the correct name and his age below each person.
右面有四个人：
1
1
1 4
1 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
身高示意图(⊙o⊙)嗯
然后叫你填他们的年龄和名字~
答
bill 4
jact 8
ben 12
ted 16