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16 Jun 2022, 22:02
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Hi guys,
I am taking GMAT for the first time. I am good with all my quant topics/formulas/tricks, I studied each topic carefully, memorized the formulas.
However, when it comes to solving a quant question, I am often lost as to which formula I should use. I have gone through the whole official guide, but whenever I come across a problem that is not familiar to me, I am lost as to what I am supposed to do.
My solution was to solve as many problems and probably I will start seeing a pattern. However this is not working all the time!
Please Please let me know how I can mend this gap between concepts and identifying which one I should use when I come across a quant question.
I literally cannot solve a question without referring to the answer. I feel like I have hit a ceiling and cannot understand what I should change.
For eg, Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
I don't know how to approach this. I would think this as a ratio/proportion concept. But the OA uses a Greatest Common factor concept. I am confused how I can just conjure up which concept should I use.
Bunuel
KarishmaB
I am taking GMAT for the first time. I am good with all my quant topics/formulas/tricks, I studied each topic carefully, memorized the formulas.
However, when it comes to solving a quant question, I am often lost as to which formula I should use. I have gone through the whole official guide, but whenever I come across a problem that is not familiar to me, I am lost as to what I am supposed to do.
My solution was to solve as many problems and probably I will start seeing a pattern. However this is not working all the time!
Please Please let me know how I can mend this gap between concepts and identifying which one I should use when I come across a quant question.
I literally cannot solve a question without referring to the answer. I feel like I have hit a ceiling and cannot understand what I should change.
For eg, Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
I don't know how to approach this. I would think this as a ratio/proportion concept. But the OA uses a Greatest Common factor concept. I am confused how I can just conjure up which concept should I use.
Bunuel
KarishmaB
16 Jun 2022, 22:54
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Rucha96
Hi guys,
I am taking GMAT for the first time. I am good with all my quant topics/formulas/tricks, I studied each topic carefully, memorized the formulas.
However, when it comes to solving a quant question, I am often lost as to which formula I should use. I have gone through the whole official guide, but whenever I come across a problem that is not familiar to me, I am lost as to what I am supposed to do.
My solution was to solve as many problems and probably I will start seeing a pattern. However this is not working all the time!
Please Please let me know how I can mend this gap between concepts and identifying which one I should use when I come across a quant question.
I literally cannot solve a question without referring to the answer. I feel like I have hit a ceiling and cannot understand what I should change.
For eg, Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
I don't know how to approach this. I would think this as a ratio/proportion concept. But the OA uses a Greatest Common factor concept. I am confused how I can just conjure up which concept should I use.
Bunuel
KarishmaB
I am taking GMAT for the first time. I am good with all my quant topics/formulas/tricks, I studied each topic carefully, memorized the formulas.
However, when it comes to solving a quant question, I am often lost as to which formula I should use. I have gone through the whole official guide, but whenever I come across a problem that is not familiar to me, I am lost as to what I am supposed to do.
My solution was to solve as many problems and probably I will start seeing a pattern. However this is not working all the time!
Please Please let me know how I can mend this gap between concepts and identifying which one I should use when I come across a quant question.
I literally cannot solve a question without referring to the answer. I feel like I have hit a ceiling and cannot understand what I should change.
For eg, Bouquets are to be made using white tulips and red tulips, and the ratio of the number of white tulips to the number of red tulips is to be the same in each bouquet. If there are 15 white tulips and 85 red tulips available for the bouquets, what is the greatest number of bouquets that can be made using all the tulips available?
I don't know how to approach this. I would think this as a ratio/proportion concept. But the OA uses a Greatest Common factor concept. I am confused how I can just conjure up which concept should I use.
Bunuel
KarishmaB
Yes, GCD and LCM problems are especially tricky to identify because they never mention "GCD/LCM."
When we see words such as "... are divided in a way such that each gets the same ... such that none are leftover ... are equally distributed etc.," it often indicates the use of GCD/LCM. Try some word problems on this concept and you will understand what I mean.
Also, GMAT quant isn't about formulas. We only discuss the most basic formulas because they are all that will be useful. Everything else is an application of the concepts. OG is not a sufficient resource for GMAT prep - it has great practice questions, especially for verbal, but you do need to run through the curriculum of a test prep to do well.
17 Jun 2022, 09:27
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Hello, Rucha96. I know that you did not ask for my opinion on the matter, but perhaps an extra Expert view will help. I agree with KarishmaB that "GMAT quant isn't about formulas." We are often asked to ponder matters that relate to quantitative measures, but we have to be flexible with our reasoning to arrive at an accurate (and expedient) solution, often without resorting to formulas. For instance, I came across the following question by Bunuel earlier today (link):
That is about it. And you go to work. I echo what Karishma said about practicing word problems, not just for GCD/LCM questions, but for other topics as well. You can develop strong test-taking skills that allow you to organize your thoughts, remain calm, and answer with more confidence.
I would urge you to check out the Announcements section of the Quantitative main page. The two posts ALL YOU NEED FOR QUANT ! ! ! and the Ultimate GMAT Quantitative Megathread contain many useful articles and links on theory (many of which Karishma herself wrote for the Veritas Prep blog).
Good luck with your studies.
- Andrew
Quote:
How many positive four-digit integers do not contain any digits other than 1 or 0 and are such that the sum of the first two digits equals the sum of the last two digits?
A. 3
B. 4
C. 8
D. 10
E. 12
Now, there is little you can do with the above information other than to think things through, one consideration at a time.A. 3
B. 4
C. 8
D. 10
E. 12
- What constitutes a positive four-digit integer?
- What digits are available to use?
- What is a sum?
That is about it. And you go to work. I echo what Karishma said about practicing word problems, not just for GCD/LCM questions, but for other topics as well. You can develop strong test-taking skills that allow you to organize your thoughts, remain calm, and answer with more confidence.
I would urge you to check out the Announcements section of the Quantitative main page. The two posts ALL YOU NEED FOR QUANT ! ! ! and the Ultimate GMAT Quantitative Megathread contain many useful articles and links on theory (many of which Karishma herself wrote for the Veritas Prep blog).
Good luck with your studies.
- Andrew
