首页
登录
职称英语
A school district has 1,989 computers, which is approximately one computer for e
A school district has 1,989 computers, which is approximately one computer for e
游客
2025-02-24
39
管理
问题
A school district has 1,989 computers, which is approximately one computer for every 68.6 students. Of the following, which is the closest approximation, in thousands, of the number of students in the school district?
选项
A、30
B、120
C、140
D、160
E、200
答案
C
解析
一校区有1989台计算机,大约为68.6名学生一台,以千为单位,下面哪一项最接近校区的学生数?
解:本题的正确答案为(C)。此题比较简单,大多数的考生都会这样来解这道题:由平均68.6人一台电脑可得该校区共有1989×68.6≈136,445≈140,000名学生。但是考生要注意的一点是,本题只是让求近似解,因此可以通过取近似值的办法来大大简化计算过程,1989≈2000,68.6≈70,由此可以口算出该校区学生人数为140千。
转载请注明原文地址:http://tihaiku.com/zcyy/3971348.html
相关试题推荐
Inthe1978-1979schoolyear,if12percentoftheamountofcontributionsalloc
Jimscored95pointsin5basketballgamesforhisschool.Atthisrate,howman
If5/9ofthemembersoftheschoolchorusareboys,whatistheratioofgirls
In1974thedollarvalueofimportswasapproximatelywhatpercentofthedollar
Aschoolbushas10doubleseatsineachof2rows.Twostudentscansitineach
[img]2014m5x/ct_egreqm_egreqtbz1_0083_20135[/img][br]Approximatelywhatisthe
[img]2014m5x/ct_egreqm_egreqtbz1_0083_20135[/img][br]In1995,approximatelyho
InyearY,thepopulationofColoradowasapproximatelyhalfthatofNewJersey,
Ofthestudentsinaschool,20percentareinthesciencecluband30percenta
ThenumberofInternetusersintheUnitedStateswasapproximatelyhowmanytim
随机试题
EatingOurYoung[A]AtFeltonvilleSchoolofArtsa
[originaltext]W:Whataday!I’mexhausted.M:Wellit’snotoveryet.W:Yeah
Givingbirthtoachildwasalife-or-deathstruggleforthemotherandbaby
Manyofnsstilltendtoregardemotionsasinterferingwithrationalthought,a
患者,女,66岁,下唇部肿物3年,诊断为"下唇鳞状细胞癌",行"肿物扩大切除术"
A.紫癜性肾炎 B.小血管炎 C.膜增生性肾炎 D.狼疮性肾炎 E.急性
sis表达产物是 A.跨膜生长因子受体B.生长因子类C.核内转录因子D.
某行业的平均工资率从10元/小时上升到15元/小时该行业的劳动工时供给数量上升了
对于二次深化设计,应组织深化设计单位与原设计单位充分协商沟通出具深化设计图纸,由
根据《招标投标法》的规定,不属于评标专家库专家必备的条件是()。A.从事相
最新回复
(
0
)