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Difficulty:
5%
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Question Stats:
90% (00:46) correct
10%
(00:50)
wrong
based on 551
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In 1990 a total of x earthquakes occurred worldwide, some but not all of which occurred in Asia. If m o f these earthquakes occurred in Asia, which of the following represents the ratio of the number of earthquakes that occurred in Asia to the number that did NOT occur in Asia?
A) x/m
B) m/x
C) m/(x-m)
D) x/(x-m)
E) 1- (m/x)
A) x/m
B) m/x
C) m/(x-m)
D) x/(x-m)
E) 1- (m/x)
01 Apr 2015, 02:50
Kudos
Bookmarks
NYCgirl15
if m occurred in Asia then x-m occurred in ROW .
\(\frac{m}{x-m}\)
Answer C
01 Apr 2015, 21:48
Kudos
Bookmarks
Hi NYCgirl15,
You can treat this question 'conceptually', using variables and logic to get to the answer. You can also TEST VALUES to get to the solution.
We're given a couple of facts to work with:
1) There were a total of X earthquakes
2) Of those earthquakes, M of them occurred in Asia
We're asked for the ratio of the number of earthquakes that occurred IN ASIA to the number of earthquakes that DID NOT occur in Asia.
Let's TEST VALUES
X = 5 total earthquakes
M = 2 occurred in Asia
Thus, there were 3 earthquakes that DID NOT occur in Asia....
The answer to the question is 2:3
We just need to plug in the values for X and M and find the match...
Answer A: X/M = 5/2 NOT a match
Answer B: M/X = 2/5 NOT a match
Answer C: M/(X-M) = 2/(5-2) = 2/3 This IS a match
Answer D: X/(X-M) = 5/(5-2) = 5/3 NOT a match
Answer E: 1 - (M/X) = 1-2/5 = 3/5 NOT a match
Final Answer:
GMAT assassins aren't born, they're made,
Rich
You can treat this question 'conceptually', using variables and logic to get to the answer. You can also TEST VALUES to get to the solution.
We're given a couple of facts to work with:
1) There were a total of X earthquakes
2) Of those earthquakes, M of them occurred in Asia
We're asked for the ratio of the number of earthquakes that occurred IN ASIA to the number of earthquakes that DID NOT occur in Asia.
Let's TEST VALUES
X = 5 total earthquakes
M = 2 occurred in Asia
Thus, there were 3 earthquakes that DID NOT occur in Asia....
The answer to the question is 2:3
We just need to plug in the values for X and M and find the match...
Answer A: X/M = 5/2 NOT a match
Answer B: M/X = 2/5 NOT a match
Answer C: M/(X-M) = 2/(5-2) = 2/3 This IS a match
Answer D: X/(X-M) = 5/(5-2) = 5/3 NOT a match
Answer E: 1 - (M/X) = 1-2/5 = 3/5 NOT a match
Final Answer:
GMAT assassins aren't born, they're made,
Rich
