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原题:<!-- /* Font Definitions */ @font-face {font-family:宋体; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:SimSun; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;}@font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:1627421319 -2147483648 8 0 66047 0;}@font-face {font-family:"\@宋体"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 135135232 16 0 262145 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; mso-pagination:none; font-size:10.5pt; mso-bidi-font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:宋体; mso-font-kerning:1.0pt;}p {mso-margin-top-alt:auto; margin-right:0cm; mso-margin-bottom-alt:auto; margin-left:0cm; mso-pagination:widow-orphan; font-size:12.0pt; font-family:宋体; mso-bidi-font-family:宋体;} /* Page Definitions */ @page {mso-page-border-surround-header:no; mso-page-border-surround-footer:no;}@page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;}div.Section1 {page:Section1;}--> 131 一个dealer卖car和truck, 四门的car是总车数的48%, 另外总车数里有80%是car.问非四门的轿车占总车数%比. 非四门轿车: 总车X 0.8X-0.48X=0.32???答案是0.12 260. Of vehicles( car+truck), 48% are 4 door cars. 80% of the cars are4 door. What’s the proportion of cars that is not 4 door to the population ofvehicle? The answer is 12%48% are 4 door cars. 80% of the cars are4 door 这里80% of the cars are4 door中的CARS应该改成 VEHICLES吧
然后 问非四门CAR比总的车数 那不还是(1-0.48)/1 么 总么可能是0.12
265 of the veichles (cars and truck) on sale,48% of the cars are 4-door. 80% of the sale cars are 4-door. 问,有多少%的veichle是不是4-door的,完全没懂。我选了个20%。。。。答案有12%什么的。忘记了。
汇总一下:总车的48%是四门,轿车的80%是四门(设为X),问非四门占总车多少Percent (1-80%)/80%*X除以X/48%=12%
最后的汇总让人很困惑 既然48%是四门 问不是四门多少 那么不就是1-0.48=0.52么......
所以 真的麻烦大家帮助看下题目 超级纠结 谢谢啦 到底是怎么做出来12%的?题目求的到底是什么??谢谢
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