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25 Feb 2024, 18:56
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
60% (02:09) correct
40%
(01:51)
wrong
based on 5
sessions
History
Date
Time
Result
Not Attempted Yet
On the GMAT Focus Official Practice Exam, the following question appears:
On the number line shown, the tick marks are equally spaced and the coordinates of points F and G are 3^11 and 3^12, respectively. Which of the following points has the coordinate -(3^12) ?
A. A
B. B
C. C
D. D
E. E
This is how I solved the problem:
On the number line shown, the tick marks are equally spaced and the coordinates of points F and G are 3^11 and 3^12, respectively. Which of the following points has the coordinate -(3^12) ?
A. A
B. B
C. C
D. D
E. E
This is how I solved the problem:
Quote:
Looking up the problem, it appears that the answer is correct. However, the solutions I'm stumbling upon use a variety of other methods to arrive at this answer, and none of them quite match up with my method. Just to make sure, is this a valid way to solve this problem? Or is there a mistake and I just happened to stumble upon the correct answer out of pure luck? For example, can 3^11 - (3^11 * 2)*x really be simplified to 3^11 * (1-2x), or does this not work because it's actually 3^11 - (3^11*x * 2x)? Thank you for your time and consideration.
Archived Topic
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25 Feb 2024, 19:10
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You are ok with your solution but not ok with the way you have posted the question. Please follow the rules. Look for the question. If it is not posted yet, please post it properly and add your queries to it in the next post.
You are wrong on ‘because it's actually 3^11 - (3^11*x * 2x)’.
3^11-(3^11*2)*x = 3^11-3^11*2x = 3^11(1-2x)
You are wrong on ‘because it's actually 3^11 - (3^11*x * 2x)’.
3^11-(3^11*2)*x = 3^11-3^11*2x = 3^11(1-2x)
25 Feb 2024, 23:42
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machag
Hello there,
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Please note that this topic has been locked and archived.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
