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QOTD#8 Internet use in year X

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QOTD#8 Internet use in year X [#permalink]  19 Aug 2016, 16:32
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Question Stats:

89% (03:59) correct 10% (02:35) wrong based on 29 sessions
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#GREpracticequestion Which of the following is closest to the percent.jpg [ 141.89 KiB | Viewed 4721 times ]
22. Which of the following is closest to the percent of Internet users in Europe who were in countries other than Germany, France, Britain, Italy, and Spain?

A. 30%
B. 34%
C. 38%
D. 42%
E. 46%

[Reveal] Spoiler: OA
A

23. Approximately what was the range of the numbers of Internet users in the seven areas of Europe shown in the bar graph?

A. 6.5 million
B. 5.5 million
C. 3.5 million
D. 3.0 million
E. 2.5 million

[Reveal] Spoiler: OA
B

24. The number of Internet users in the United States was approximately how many times the number of Internet users in Italy?

A. 5
B. 15
C. 20
D. 25
E. 35

[Reveal] Spoiler: OA
E

25. Based on the information given, which of the following statements about Internet use in year X must be true?

Indicate all such statements.

A. The United States had more Internet users than all other countries in the world combined.
B. Spain had fewer Internet users than any country in Eastern Europe.
C. Germany and France combined had more than $$\frac{1}{3}$$ of the Internet users in Europe.

[Reveal] Spoiler: OA
A, C

Practice Questions
Question: 22 - 25
Page: 183 -184

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Sandy
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Retired Moderator
Joined: 07 Jun 2014
Posts: 4804
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 163

Kudos [?]: 2761 [3] , given: 394

Re: QOTD#8 Internet use in year X [#permalink]  19 Aug 2016, 16:42
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Explanation

22.

The distribution of Internet users in Europe is given in the bar graph. In the graph, the countries in Europe other than Germany, France, Britain, Italy, and Spain are grouped into two areas: Eastern Europe and Rest of Europe. According to the graph, there were approximately 1.9 million users in Eastern Europe and 6.3 million users in Rest of Europe. Thus the number of users in these two areas combined was approximately 1.9 + 6.3, or 8.2 million.

From the title of the bar graph, the total number of Internet users in Europe was 27.3 million. Therefore the number of users in the two areas combined, expressed as a percent of all users in Europe, is about $$\frac{8.2}{27.3}*100%$$ or approximately 30%. The answer choice that is closest is 30%. The correct answer is Choice A.

23.

The range of the numbers of Internet users in the seven areas of Europe shown in the bar graph is equal to the greatest of the seven numbers minus the least of the seven numbers. Of the seven areas, Rest of Europe had the greatest number of users, approximately 6.3 million, and Spain had the least number of users, approximately 0.7 million. So the range was approximately 6.3 – 0.7, or 5.6 million. The answer choice that is closest is 5.5 million. The correct answer is Choice B.

24.

According to the bar graph, the number of Internet users in Italy was approximately 1.4 million. The number of Internet users in the United States is not explicitly given, but you know from the circle graph that it was equal to 51% of the number of Internet users worldwide.

From the bar graph, the number of Internet users in Europe was 27.3 million, and from the circle graph this number was 29% of Internet users worldwide. It follows that the number of users worldwide was $$\frac{27.3}{0.29}$$ million, which is approximately 94 million. Thus the number of users in the United States was 51% of 94 million, or approximately 48 million.

Since the numbers of Internet users in the United States and in Italy were about 48 million and 1.4 million, respectively, it follows that the number in the United States was approximately $$\frac{48}{1.4}$$ times the number in Italy. Since $$\frac{48}{1.4}$$ is approximately 34, and the answer choice closest to 34 is 35, the correct answer is Choice E.

25.

Each statement needs to be evaluated separately.

Statement A. According to the circle graph, 51% of Internet users worldwide were in the United States. Since 51% is greater than $$\frac{1}{2}$$ Statement A must be true.

Statement B. According to the bar graph, the number of Internet users in Eastern Europe, approximately 1.9 million, was greater than the number in Spain, approximately 0.7 million. However, since the bar graph does not give any information about the distribution of users in the individual countries in Eastern Europe, Statement B may or may not be true.

Statement C. According to the bar graph, Germany and France together had about 12 million Internet users. Since there were 27.3 million users in Europe and 12 is greater than $$\frac{1}{3}$$ of 27.3, Statement C must be true.

The correct answer consists of Choices A and C.
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Re: QOTD#8 Internet use in year X [#permalink]  21 Dec 2019, 11:42
Thanks for the explanation. This is a very simple approach))
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