首页
登录
职称英语
VALUE OF IMPORTS TO AND EXPORTS FROM COUNTRY T, 2000-2009[img]2014m9x/ct_egreqj
VALUE OF IMPORTS TO AND EXPORTS FROM COUNTRY T, 2000-2009[img]2014m9x/ct_egreqj
游客
2024-01-12
6
管理
问题
VALUE OF IMPORTS TO AND EXPORTS FROM COUNTRY T, 2000-2009
[br] Hard Question
If it were discovered that the value of imports shown for 2007 was incorrect and should have been $5 billion instead, then the average(arithmetic mean)value of imports per year for the 10 years shown would have been approximately how much less?
选项
A、$200 million
B、$50 million
C、$20 million
D、$7 million
E、$5 million
答案
A
解析
To answer this question, you do not need to compute either of the two 10-year averages referred to in the question; you just need to calculate the difference between the two averages.
The average value of imports for the 10 years shown in the graph is found by adding the 10 values and then dividing the sum by 10. The value of imports in 2007 is $7 billion. If that amount were $5 billion instead, then the sum of the values would be $2 billion less. If the sum were $2 billion less than what it was, then the average would decrease by 2 billion divided by 10, or
= 200,000,000. The average would therefore be $200 million less, and the correct answer is Choice A.
A more algebraic approach to the problem is to let S represent the sum, in billions, of the 10 values of imports in the graph. The average of the 10 values is S/10. Note that S - 2 represents the sum, in billions, of the 10 values adjusted for the $2 billion correction for 2007. The average of the adjusted sum is
. The difference between the two averages is
The difference is 0.2 billion dollars, or $200 million. The correct answer is Choice A.
转载请注明原文地址:https://tihaiku.com/zcyy/3355914.html
相关试题推荐
CompaniesinthecountryofKollontaycansellsemiconductorsinthecountryof
ExportsofUnitedStateswoodpulpwillriseconsiderablyduringthisyear.The
21.Theprogramtocontroltheentryofillegaldrugsintothecountrywasafa
1.Intheaftermathofaworldwidestock-marketcrash,CountryTclaimedthatt
InBassariaagroupofthatcountry’smostseniorjudgeshascriticizedtheunif
ThecottonfarmsofCountryQbecamesoproductivethatthemarketcouldnotabs
Foratradeembargoagainstaparticularcountrytosucceed,ahighdegreeofbo
Figuresissuedbythegovernmentofacertaincountryshowthatin1980thepubl
AstudyofthedifferenceinearningsbetweenmenandwomeninthecountryofNa
Palladiumpriceshavesoared,withRussiarestrictingexportsandbecauseautoma
随机试题
[originaltext]Hello,everyone.First,Ihaveaquestiontoaskallofyou.
1898年英国人霍华德(E.Howard)提出了什么城市规划理论?()A.“
下列各项,属青年人脑栓塞重要病因的是( )。A.肾病综合征 B.扩张性心肌病
把一根钢管锯成5段需要8分钟,如果把同样的钢管锯成20段需要多少分钟
居住区内车行道宽度为单车道时,每隔150米左右应设置车辆会让处。( )
A.氯化锶 B.氧化剂 C.洗必泰 D.单氟磷酸钠 E.三氯羟苯醚属于增
(2016年真题)下列关于核定征收企业所得税的说法,正确的是()。A.采用两种
关于国有独资公司董事会的说法,正确的有()。A.董事会成员由上级人民政府委派和
(2021年真题)企业将采用公允价值模式计量的投资性房地产转换为自用房地产时,转
女,22岁。腰痛伴低热,盗汗、乏力5个月。不属于该病X线特征性表现是( )。A
最新回复
(
0
)