首页
登录
职称英语
There were 36,000 hardback copies of a certain novel sold before the paperback v
There were 36,000 hardback copies of a certain novel sold before the paperback v
游客
2025-02-27
28
管理
问题
There were 36,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold,9 times as many paperback copies as hardback copies were sold.If a total of 441,000 copies of the novel were sold in all how many paperback copies were sold?
选项
A、45,000
B、360.000
C、364,500
D、392,000
E、396,900
答案
C
解析
Let h be the number of hardback copies of the novel that were sold after the paperback version was issued. The following table summarizes the given information.
Then, 441,000 - 36,000 + 10 h or h = 40,500 and 9h=(9)(40,500) = 364,500.
The correct answer is C.
From the moment the paperback version was issued, 441,000 - 36,000 = 405,000 copies of the novel were sold. Test the answer choices to see whether the ratio of paperbacks sold to hardbacks sold is 9:1. Start with the middle value, because the answer choices are usually listed in numerical order. This way, if you pick an answer that does not give the 9:1 ratio, you can learn whether it was too high or too low, thus allowing you to eliminate other answers that are too high or too low.
Testing answer choice C, if 364,500 paperbacks were sold, then 405,000 - 364,500 = 40,500 hardbacks were sold after the initial 36,000 hardbacks were sold. Noting that 40,500 hardbacks is 10% of 405,000 and 364,500 paperbacks is 90% of 405,000, the ratio of paperbacks to hardbacks is 9:1.
The correct answer is C.
转载请注明原文地址:https://tihaiku.com/zcyy/3974726.html
相关试题推荐
Eachofthefivedivisionsofacertaincompanysentrepresentativestoaconfer
Onthedayoftheperformanceofacertainplay,eachticketthatregularlysell
[img]2022m10x/ct_ve01204002j_0009_221018[/img]Acertainmanufacturerusesthef
When2/9ofthevotesonacertainresolutionhavebeencounted,3/4ofthoseco
Acertainbrandofhousepaintmustbepurchasedeitherinquartsat$12eachor
Acertaintrucktravelingat55milesperhourgets4.5milespergallonofdies
Onacertainnumberline,if8isdistanceof18fromn,and17ishedistanceo
Acertainmathematicaloperationmayberepresentedbythesymbol@.Forallnonz
When-ofacertainnumberissubtractedfromthenumberandthenthisdifferenc
Accordingtothepassage,beforethefinalresultsofthestudywereknown,whic
随机试题
[originaltext]Parisisplanningtoerecttwoglasswallsnearthebaseoft
[originaltext]GovernmentsfromSingaporetoSouthKoreaareincreasinglyli
ForadevelopingcountrylikeIndiawhoseecologicalandsocio-economicsys
SummerSchoolandOnlineClassesIntheUnitedStates,【T1】______forhig
[originaltext]W:Icanhardlybreathe.Wouldyoupleaseputyourcigaretteout?
脂质体的给药途径不包括()。A:口服 B:注射 C:肺部 D:眼部 E
还款期是指从借款合同规定的()起至全部本息清偿日止的期间。A.第一次还款日
《变电运维管理规定第22分册站用变运维细则》:下列关于干式站用变超温告警处理原则
2020年J省完成货物进出口总额44500.5亿元,其中出口27444.3亿元,
2010年,天津市全市生产总值突破9000亿元。据初步核算,并经国家统计局评估审
最新回复
(
0
)