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英语算术题目howoldisBillJackistwiceasoldasbill,whoiseightyearsyoungerthanBen,whoisfouryearsyoungerthanTed,whoishalfasoldagainasJack,HowoldisBill?
题目详情
英语算术题目how old is Bill
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 again as Jack,How old is Bill?
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 again as Jack,How old is Bill?
▼优质解答
答案和解析
J比BILL大一倍,BILL比BEN小8岁,BEN比T小4岁,T是J一倍的一半等于J
根据题意,设BILL为X岁
则有:X+8+4=2X
解得BILL为12岁
根据题意,设BILL为X岁
则有:X+8+4=2X
解得BILL为12岁
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