If the ratio of brown cars to blue cars in a certain parking lot is 2:3, how many brown cars are in the lot?(1) There are 15 blue cars in the lot.(2) There are 25 cars total in the lot.

题目

If the ratio of brown cars to blue cars in a certain parking lot is 2:3, how many brown cars are in the lot?

(1) There are 15 blue cars in the lot.

(2) There are 25 cars total in the lot.

参考答案和解析

正确答案：D
D 解析：When we evaluate statement (1), we can tell that there are 10 brown cars in the lot, because that's the only number that would give us a ratio of 2:3 if there are 15 blue cars. So we can eliminate B, C, and E.
Taking statement (2) alone, we can tell that we have 15 blue and 10 brown cars in the lot, because those are the only numbers that would add up to 25 and give a ratio of 2:3. So either statement is sufficient on its own, which means D is the correct answer.

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相似问题和答案

第1题：

After the new technique was introduced, the factory produced ( )cars in 2002 as in the year before.

A、as twice many

B、as many twice

C、twice as many

D、as twice as many

参考答案：C

第2题：

WhichtwosoftwarecomponentsareprerequisiteproductsfortheCommonAuditandReportingService(CARS)eventserver?()

A.IBMDB2Server

B.CrystalEnterpriseServer

C.IBMTivoliDirectoryServer

D.IBMWebSphereApplicationServer

E.IBMTivoliAccessManagerAuthorizationServer

参考答案：A, D

第3题：

Over a holiday weekend, a certain car dealer sold off 4 of the cars on its lot. If the cars sold for an average of $6,000 each, how many cars were on the dealer's lot at the beginning of the weekend?

(1) The average value of the remaining cars on the lot is $5,000.

(2) The car dealer made $48,000 in car sales over the weekend.

正确答案：B
B 解析：Given statement (1) alone, we only know average values of both the cars that were sold and the cars that remained; the dealer could have sold 4 cars and had 1 left, or sold 8 cars and had 2 left, or an infinite number of other options. So we can eliminate A and D.
With statement (2), we are able to find the number of cars sold by dividing the total sales by the average price. 48,000/6,000=8, so the dealer sold 8 cars. Since that is 4/5 of the cars on the lot, the dealer started off with 10 cars. Statement (2) is sufficient, so the answer is B.

第4题：

资料：“Our cars are for people who want something different.”
This has been the slogan for over 50 years of Suprema Cars, a manufacturer of an English sports car. The car is mostly handmade in the company's factory in northern England. Suprema Car produces approximately 500 cars a year. About 5 years ago, the company began to lose sales and market share, and in the last two years, it has made a loss.
Recently, there have been problems with the labor force. The factory workers have demand higher wages and better working conditions. They are also unhappy because the management is insisting that they increase production, but the workers think this will have a bad effect on the quality of the cars.
The company still has many loyal customers. People buy Suprema sports cars because they are handmade and have an image of quality and craftsmanship.

Which of the following is NOT a problem that Suprema Cars is facing?

A.Customers’ distrust of products.
B.A financial loss.
C.Unhappy workers.
D.Loss on sales and market share.

答案：A

解析：

本题的问题是“以下哪一项不是Suprema汽车面临的问题？”。选项A意为“客户对产品的不信任”；选项B意为“经济损失”；选项C意为“不快乐的工人”；选项D意为“失去销售和市场份额”。根据主题句可知，B、C、D选项均有提及，故选A。

第5题：

Catherine: Building a community without private cars

正确答案：A
解析：首先了解每个人的兴趣是什么，然后分析A-F六个主题，从而可以得出A：创建一种车的俱乐部，大家共用，这样会降低污染。B：用风涡轮机制造能源。

第6题：

MODS发生发展中,炎症反应失控的表现有

A、CARS

B、SIRS

C、MARS

D、CARS和SIRS并存

E、CARS＝SIRS

参考答案：ABCDE

第7题：

III阅读理解（20分）

There are many different kinds of cars in the world． My uncle thinks this is because cars are like their drivers． He says: "Rich people have expensive cars，big people have large cars，and old people drive old cars． "But I don-t agree with him．

My neighbor，Mrs Hill，is 82 years old． She drives only to the bank on Tuesdays． She never drives more than 30 kilometers an hour． Do you think Mrs Hill has a very old and small car? No! Her car is new．lt-s very large，and it can g0 200 kilometers an hour!

My friend Mike is an artist． He draws beautiful pictures with lots of colors． But his car is black! Mrs Bates has a very，very old car．lt often has engine trouble． Does she drive that kind of car because she is poor? No，she has four factories and two million dollars in the bank． My aunt Mary has a very small car． Every Sunday，she．drives to the country with her husband，her three children，her mother and their dog．

Now，you have read about some people and their cars． Do you agree with my uncle? Maybe your family have cars． Do you want to say something about them?'

( )21． What does the writer-s uncle think of cars and their drivers?

A． Big people drive small cars．

B． Old people drive new cars．

C． Poor people have expensive cars．

D． Rich people have dear cars．

正确答案：D
Ⅲ．21.D【解析】从文中第一段第三句作者叔叔说的话中“...Rich people have expensive cars”可知答案．

第8题：

Many people believe that Americans love their cars almost more than anything else. They are (21) about cars. Not only is the car the (22) means of transportation in the States, it has (23) become a "plaything". (24) the time youngsters become fourteen years old or even (25) , they're likely to start (26) of having their own cars.

In the USA, the (27) family, if the father is not (28) work, can afford to buy a new car every five years. However, many young people (29) after school in order to save money to buy a car. Learning to drive and getting a driver license may be one of the most exciting (30) of a young person's life. Driver (31) is one of the most popular courses. At the end of the course the student will (32) a driving test for a license. (33) many, that piece of paper means that they have grown up.

In the United States, many men and women (34) to have cars. People use cars to go to work. (35) drive cars to go shopping, to take the children to school or for other activities.

21.

A. crazy

B. careful

C. sure

D. worried

正确答案：A
21．答案为A 本题为短语搭配题。be crazy about=be wildly excited about，意思是“着迷”。

第9题：

简述CARS的各项指标。

答案：

解析：

CARS是指可信度(Credibility)、准确度(Accuracy)、合理性(Reasonableness)和相关支持(Support).这是评价因特网上信息资源的四个最基本的指标。
可信度：作者的可信度;网上信息质量保证的依据;元信息。
准确性：时效性、全面性、针对性。
合理性：公正性、客观性、适度性、一致性。
相关支持：信息出处的判断、相关资料的确证、外部一致性的核查。

第10题：

A.It designs classic car models.
B.It produces hand-made cars.
C.It research and develop car-related technologies.
D.It creates advertisements for the cars.

答案：B

解析：

本题的问题是“Suprema汽车提供什么样的服务？”。选项A意为“它设计经典的汽车模型”；选项B意为“它生产手工制造的汽车”；选项C意为“它研究和开发汽车相关技术”；选项D意为“它为汽车制作广告”。根据主题句可知，Suprema汽车生产手工制造的车，故选B。

If the ratio of brown cars to blue cars in a certain parking lot is 2:3, how many brown cars are in the lot?(1) There are 15 blue cars in the lot.(2) There are 25 cars total in the lot.

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