急:提问一道GRE数学1.Mr.Jones sold two house for 80000 dollarseach.One house was sold at a 20 percent loss and the other at a 20 percentgain.What is the gain minus the loss?因为盈的房子原价比亏得房子原价低,所以盈与亏的差

来源：学生作业帮助网编辑：六六作业网时间：2024/12/19 14:45:11

急:提问一道GRE数学1.Mr.Jonessoldtwohousefor80000dollarseach.Onehousewassoldata20percentlossandtheotherata20

急:提问一道GRE数学1.Mr.Jones sold two house for 80000 dollarseach.One house was sold at a 20 percent loss and the other at a 20 percentgain.What is the gain minus the loss?因为盈的房子原价比亏得房子原价低,所以盈与亏的差
急:提问一道GRE数学
1.Mr.Jones sold two house for 80000 dollars
each.One house was sold at a 20 percent loss and the other at a 20 percent
gain.What is the gain minus the loss?
因为盈的房子原价比亏得房子原价低,所以盈与亏的差数为负数.前半句能看懂,后半句不理解,虽然盈的房子原价比亏得房子原价低,但毕竟未算出具体原价,所以不确定原价与80000的各自差值谁大谁小吧?

翻译应该是Jones先生有2套房子，卖了80000美元。
其中一套房子亏了20%，另一套房子赚了20%，问他赚的减去亏的差值是多少？
虽然知道2套房子的总价，但是不知道其中一套房子的价格，所以差值算不出来。

盈利那套原价为y, 亏本那套原价为x
得
x-0.2x=80000 x=100000
y+0.2y=80000 y=66666.7
(y-x)*20%=-6666.66,,为负数

题目大意是两套房子都卖了8000，但是一套等于是赚了20%，即原价应该是80000/1.2也就是80000*（5/6）赚了80000*（1/6），第二套亏了20%，即原价应该是80000/0.8,也就是80000*1.25原价10w，也就是亏了20000，这样说明白了吗？都考GRE的人了不应该看不明白呀~一个赚了8w的六分之一，一个亏了8w的四分之一，所以亏得多嘛...

全部展开

收起

Mr.Jones is with his family.对Mr.Jone提问急:提问一道GRE数学1.Mr.Jones sold two house for 80000 dollarseach.One house was sold at a 20 percent loss and the other at a 20 percentgain.What is the gain minus the loss?因为盈的房子原价比亏得房子原价低,所以盈与亏的差 GRE 数学一道机经 1.That is Mr.Jone's radio改为复数句 Those()Mr.Jone's()2.Mike usually has lunch at school改为一般疑问句()Mike usually() lunch at school3.I like eggs because they're healthy food对because they're healthy food提问（）（）youlike eggs? Mr.Jones一家是什么意思?1.jone的一家2.琼斯先生的一家 Gre数学. 一道数学几何!急! 一道划线句子提问1.Mr Wind was very proud.(划线部分提问）划线部分：very proud注意：proud骄傲的句型：—— —— —— —— was Mr Wind? 急:提问一道GRE绿皮填空题In today’s world,manufacturers’ innovations areeasily copied and thus differences between products are usually _________;advertisers,therefore,are forced to _________ these differences in order tosuggest the uniq 急：提问一道GRE填空Although the records of colonial New England are______ in comparison with those available in France or England, the records ofother English colonies in America are even more ______. AE/CE Blank (i) Blank (ii) 急:提问一道GRE填空Read’s apology to Heflin was not exactly abject anddid little to _____their decades-long quarrel, which had been as _____ as theacademic etiquette of scholarly journals permitted. AE/AF Blank (i) Blank (ii) 一道题初中数学!急! 一道数学图,急,快求一道初一数学!急! 一道数学推理题急一道数学计算.急18.2 GRE数学提问答案为什么选D啊,我怎么算答案都是950000? 初一数学一道!只有一道,急