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QOTD#11 Airline departures by country in 1990
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27 Nov 2016, 14:37
27 Nov 2016, 14:37
Expert Reply
1
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Question Stats:
71% (02:50) correct
28% (03:04) wrong based on 7 sessions
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7. By approximately what percent did the total number of departures increase from 1990 to 2001?
A. 33%
B. 50%
C. 66%
D. 133%
E. 150%
8. If the nine individually listed countries (excluding those characterized as “All Others”) are ranked from highest to lowest by number of departures in 1990, how many countries ranked lower in 2001 than in 1990?
ENTER the value []
A. 33%
B. 50%
C. 66%
D. 133%
E. 150%
Show: :: OA
B
8. If the nine individually listed countries (excluding those characterized as “All Others”) are ranked from highest to lowest by number of departures in 1990, how many countries ranked lower in 2001 than in 1990?
ENTER the value []
Show: :: OA
3
Drill 1
Question: 7, 8
Page: 456-455
Question: 7, 8
Page: 456-455
Show: :: Img
Attachment:
di new.jpg [ 78.26 KiB | Viewed 7267 times ]
Re: QOTD#11 Airline departures by country in 1990
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27 Nov 2016, 14:42
27 Nov 2016, 14:42
Expert Reply
Explanation
Question 7 Round the values and use the percent change formula to approximate the answer; ignore the millions, because they are in both numbers. The percent change formula is \(\frac{1}{3}*100\) so \(\frac{(18-12)}{12}*100 =50%\).
Hence option B is correct
Question 8 The chart already ranks the countries in order in 1990. In 2001, the rankings were:
US—1st;
UK—2nd;
France—5th;
Germany—4th;
Japan—7th;
Brazil—6th;
China—3rd;
Spain—9th;
and Australia—8th.
Only three countries—France, Japan, and Spain—ranked lower in 2001 than they did in 1990, making the answer 3.
Hence 3 is the correct option
Question 7 Round the values and use the percent change formula to approximate the answer; ignore the millions, because they are in both numbers. The percent change formula is \(\frac{1}{3}*100\) so \(\frac{(18-12)}{12}*100 =50%\).
Hence option B is correct
Question 8 The chart already ranks the countries in order in 1990. In 2001, the rankings were:
US—1st;
UK—2nd;
France—5th;
Germany—4th;
Japan—7th;
Brazil—6th;
China—3rd;
Spain—9th;
and Australia—8th.
Only three countries—France, Japan, and Spain—ranked lower in 2001 than they did in 1990, making the answer 3.
Hence 3 is the correct option
Re: QOTD#11 Airline departures by country in 1990
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03 Aug 2021, 00:06
03 Aug 2021, 00:06
Why Australia was not there it's also decreasing from 0.8 to 0.6
Posted from my mobile device
Posted from my mobile device
