首页
登录
职称英语
The following data sufficiency problems consist of a question and two statements
The following data sufficiency problems consist of a question and two statements
游客
2024-01-14
54
管理
问题
The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient. [br] If 5a=9b=15c, what is the value of a+b+c?
(1) 3c-a=5c-3b
(2) 6cb=10a
选项
答案
B
解析
Statement (1) alone is insufficient; you can restate the equation as 3b=2c+a; if you multiply both sides of the equation by 3, you get 9b=6c+3a; you can determine from the equation 5a=15c that a=3c, so all this restated equation tells you is that 9b=15c=5a, which tells you nothing about the actual value of a or b. Statement (2) is sufficient. If you divide both sides of the equation by 2, you get 3cb=5a; you know that 5a=9b, so you can form the equation 3cb=9b, which you can reduce to c=3. With this value you can determine that a=9 and b=5, and you can thereby find a definitive answer to the question posed.
转载请注明原文地址:http://tihaiku.com/zcyy/3360375.html
相关试题推荐
Everydirectorneedsanassistantthathecan______totakecareofproblemsthat
Student:ImeanIwanttodosomeoftheseproblems.Teacher:Yeah.Student:Buti
Student:ImeanIwanttodosomeoftheseproblems.Teacher:Yeah.Student:Buti
Everyfieldofchemistry()differentchemicalreactions.A、holdsB、consistsC、com
Thatstudent______hishandeverytimeIaskedaquestion.A、madeupB、putupC、r
LivinginthecentralAmericandeserthasitsproblems,______obtainingwateris
Thechemistryteacheraskedthepupilswhatwaterwas______of.A、consistedB、comp
Tomakeupanobjectivetest,theteacherwritesaseriesofquestions,______ha
Rosemaryis______fatterthanshewaswhenIfirstmether.A、consistentlyB、const
Tomakeupanobjectivetest,theteacherwritesaseriesofquestions,______ha
随机试题
HehasbeenplowingthroughabiographyofLyndonJohnsonanda______ofHenry
Sherefusedto______tomygoingabroad.A、convertB、contributeC、correspondD、c
故宫(theImperialPalace)也称紫禁城,位于北京市中心,占地面积达72万平方米,是中国也是世界现存规模最大、最完整的古代皇家建筑登(compl
【S1】[br]【S8】A、withB、atC、forD、onDrunonbatterypoweralone仅靠电池动力行驶
[originaltext]Manypeoplethinkofschoolsasbuildings,teachersandstudents.
胃肠减压的目的不正确的是()A.降低胃肠道内压力 B.改善胃肠壁血液循环 C
测量结果与在重复性条件下,对同一被测量进行无限多次测量所得结果的平均值之差称为A
简述违规制造、销售枪支罪的行为方式。
①由于各个作者对所描绘植物和绘画手法有不同的认识,所以诸多本草著作中就出现了风格
在可能导致胎儿发生唇腭裂畸形的药物中,不包括A.强心药物 B.抗肿瘤药物 C
最新回复
(
0
)