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Jun 0210:00 AM PDT
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Probability is one of the most important GMAT Quant topics because it often combines logic, counting, set theory, and permutations & combinations. Many students try to solve probability questions by listing every possible case, but GMAT probability...
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25 Sep 2009, 14:39
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is there a post/discussion/site to help me with combinations? I am really weak at combinations (and probability)... specially when they are combined. Combination/permutation/probability questions are pretty much the only type of question I have gotten wrong on my last 4 practice test, and are the ones keeping me out of the 700 range.
I just have a lot of trouble with the set up and understanding which type of question it is. I have already read many things on the net, and this site is my last hope!
Any guides/links/files/books/problems to help explain this to me? Whoever helps me the most I will gladly donate $10 via paypal for your time.
I just have a lot of trouble with the set up and understanding which type of question it is. I have already read many things on the net, and this site is my last hope!
Any guides/links/files/books/problems to help explain this to me? Whoever helps me the most I will gladly donate $10 via paypal for your time.
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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 Quantitative Questions Forum
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25 Sep 2009, 23:08
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I am weak in the same area. Although IMO GMAC does not give you those hard combination/permutations problems that Kaplan has. Infact Kaplan CAT is the only one that focuses so much on these hard probability problems.
if you have other weak areas then your time is worth spending on those (better ROI). I am thinking about just making a best guess on couple of hard permutations problems. I dont think it would hurt your score so much. And I dont think they would give you more than 2-3 problems on that. Specially not if you answered the previous one wrong.
My verbal is 32 and Quant is 46. When I took Kaplan CAT I got 4 permutaiton problems (all wrong). But MGMAT and GMATPREP dint give me a single permutaiton/combination problem.
just my two cent.
Good luck
if you have other weak areas then your time is worth spending on those (better ROI). I am thinking about just making a best guess on couple of hard permutations problems. I dont think it would hurt your score so much. And I dont think they would give you more than 2-3 problems on that. Specially not if you answered the previous one wrong.
My verbal is 32 and Quant is 46. When I took Kaplan CAT I got 4 permutaiton problems (all wrong). But MGMAT and GMATPREP dint give me a single permutaiton/combination problem.
just my two cent.
Good luck
25 Sep 2009, 23:09
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I forgot to type. My point was that I rather spend my time in improving my verbal from 32 to 40 than improving my quant from 48 to 50. you know what I mean. Although I am working on quant as I am weak in DS.
