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07 Jun 2026, 02:48
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Dropdown 1: only use the euro
Dropdown 2: 17
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
60% (02:26) correct
40%
(02:35)
wrong
based on 634
sessions
History
Date
Time
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Not Attempted Yet
EUROPEAN NATIONS BY POPULATION, USE OF EURO AND NATO STATUS
The diagram shows the 44 nations that occupied the continent of Europe in 2013. Every dot represents a smaller nation with a population less than 500,000, whereas every circle represents a nation with more than half a million people. Those nations inside the "NATO" circle are members of the NATO military alliance. Those nations inside the "euro" circle use the euro as their primary currency.
From the drop-down menus, select the options that create the most accurate statement based on the information provided.
Considering only the set of nations with a population over 500,000, those that comprise (to the nearest whole percent) percent of the set.
The diagram shows the 44 nations that occupied the continent of Europe in 2013. Every dot represents a smaller nation with a population less than 500,000, whereas every circle represents a nation with more than half a million people. Those nations inside the "NATO" circle are members of the NATO military alliance. Those nations inside the "euro" circle use the euro as their primary currency.
From the drop-down menus, select the options that create the most accurate statement based on the information provided.
Considering only the set of nations with a population over 500,000, those that comprise (to the nearest whole percent) percent of the set.
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Official Answer
Dropdown 1: only use the euro
Dropdown 2: 17
07 Jun 2026, 07:01
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Population over 500k is circles
only the set of nations with a population over 500,000 = 36 Nos
Only use Euro = 6
Hence ( 6/36 )*100 = 16.66%
So I marked 17% for Only use Euro
only the set of nations with a population over 500,000 = 36 Nos
Only use Euro = 6
Hence ( 6/36 )*100 = 16.66%
So I marked 17% for Only use Euro
Hi kaustubhkohli12,
Good news - your two selections are correct. "Only use the euro" and 17% is exactly the most accurate completed statement.
Here's why it holds, building on what SM15 already laid out in the thread:
- The sentence starts with "considering only the set of nations with a population over 500,000" - so you work with the circles only and ignore every dot (the under-500k nations). That gives you 36 circle-nations as your base.
- The region you want is the part of the euro circle that does not overlap NATO - the nations that only use the euro. There are 6 of them.
- So the fraction is 6 / 36 = 0.1666... ≈ 17%.
The key thing you got right is the base: you divided by 36 (all circle-nations), not by 44 (which would have wrongly pulled in the small dot-nations). That's the trap on this kind of question - using the whole picture instead of the restricted set the sentence names.
It's also worth seeing why the other dropdown pairings don't work: the "only in NATO" and "in NATO and use the euro" regions give counts that don't round cleanly to any of 13 / 17 / 20 over a base of 36, so "only use the euro" is the one option that lands on an offered percentage. That's what makes it the most accurate statement.
So you can log this one as correct - your reading of the regions and your choice of base were both spot on.
Answer: only use the euro / 17
Good news - your two selections are correct. "Only use the euro" and 17% is exactly the most accurate completed statement.
Here's why it holds, building on what SM15 already laid out in the thread:
- The sentence starts with "considering only the set of nations with a population over 500,000" - so you work with the circles only and ignore every dot (the under-500k nations). That gives you 36 circle-nations as your base.
- The region you want is the part of the euro circle that does not overlap NATO - the nations that only use the euro. There are 6 of them.
- So the fraction is 6 / 36 = 0.1666... ≈ 17%.
The key thing you got right is the base: you divided by 36 (all circle-nations), not by 44 (which would have wrongly pulled in the small dot-nations). That's the trap on this kind of question - using the whole picture instead of the restricted set the sentence names.
It's also worth seeing why the other dropdown pairings don't work: the "only in NATO" and "in NATO and use the euro" regions give counts that don't round cleanly to any of 13 / 17 / 20 over a base of 36, so "only use the euro" is the one option that lands on an offered percentage. That's what makes it the most accurate statement.
So you can log this one as correct - your reading of the regions and your choice of base were both spot on.
Answer: only use the euro / 17
