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23 Mar 2020, 00:14
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
82% (00:41) correct
18%
(01:17)
wrong
based on 153
sessions
History
Date
Time
Result
Not Attempted Yet
What is the ratio of x to y?
(1) The ratio of x to 2y is 4:3
(2) The ratio of 3x to y is 8:1
(1) The ratio of x to 2y is 4:3
(2) The ratio of 3x to y is 8:1
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
24 Mar 2020, 06:29
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Bunuel
ASIDE: Students may find it easier to answer this question if they express the ratios as fractions.
So for example, rather than ask for the ratio x to y (or x : y), we can ask for the ratio x/y
Target question: what is the value of x/y?
Statement 1: The ratio of x to 2y is 4:3
In other words: x/2y = 4/3
From here, if we multiply both sides of the equation by 2 we get: 2x/2y = 8/3
And if we simplify the left side we get: x/y = 8/3
Since we can answer the target question with certainty, statement 1 is SUFFICIENT
Statement 2: The ratio of 3x to y is 8:1
In other words: 3x/y = 8/1
From here, if we multiply both sides of the equation by 1/3 we get: 3x/3y = 8/3
And if we simplify the left side we get: x/y = 8/3
Since we can answer the target question with certainty, statement 2 is SUFFICIENT
Answer: D
Cheers,
Brent
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08 Mar 2023, 12:32
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