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stmifx

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Everything posted by stmifx

  1. These are the questions I was talking about in my post in "Just finished GMAT section" m is 40% of p and p is 70% of r. m is what % of r ? x is 30% more than y and y is 40% less than z. x is less than z by what % ? If 3^6x=81000, (3 ^ x-1)^3 = ? If A,B and C are three vertices of a octagon and if a line is drawn from A to C. What is the measure of angle BAC. If R, T and U are points on a circle with radius r and RTU = 4pi/3. RU= ? R, T,U are on circle in that order. If a semi-circle has a radius of 1. What is the area of the largest circle that can be inscribed within this semicircle? Four jars have m marbles each. If some marbles are removed from first jar and put into other three jars the ration of the marbles in 1st jar to second jar to third jar to 4th jar then becomes 1:4:7:4. How many marbles were removed from the first jar ? A county receives 50 mills of property taxes in year 1995. One mill per dollar is equal to 1/10th of 1% of a property's assessed price. If the county received $6750 in taxes what was the assesed value? (I am not sure about all the details on this one. But am posting it anyway just to give you guys an idea :) ) Lines k and m are parallel. What is the slope of line k? 1) Line k passes through (3,2) 2) Line m passes through (-3,2)
  2. Took the test today. Everything was going fine till I came across a very weird or difficult or easy (depending on who is talking) DS. It had every possible concept of statistics thrown in. The problem stem specified mean. First statement gave details about range and median. Second statement gave details about SD, mode and range. I think I must have wasted more than 9 minutes on that stupid DS problem and had to speed up for the rest of the questions and paid the ultimate price Anyway to make a long story short essays were a breeze, quantitative is somewhat more difficult than [tooltip=Official Guide]OG[/tooltip]. In fact I personally think [tooltip=Official Guide]OG[/tooltip] is fast becoming outdated. Came across the DS problem (I think it was 7th one) I mentioned above and from there on things went downhill. Verbal was not a problem, though some of the SC questions were more than 8 lines and I couldn't believe my eyes, maybe experimental ones. About my preparation, I spent most of my time working my quantitative skills. I am not a good quant person. Mostly did [tooltip=Official Guide]OG[/tooltip] and took two or three 800 tests. Quant questions were of good difficulty, I thought the difficulty kept on steadily increasing till I hit the above mentioned DS problem. Didn't spend too much time on verbal just went through Kaplan once. However it may not work for everyone else as I am a voracious reader, have decent grammatical skills and can digest lot of rote and boring text quickly. Cannot stress the importance of knowing when to give up on a question in the real deal else you will be left with broken pottery just like me :). I am posting some questions in problem solving section for everyone to try, who knows maybe you will come across those questions on the real test. I am now heading to a bar for nachos and chilled beer. I will be back soon with full vengeance :)
  3. Hi, If you don't mind while posting questions can you list all of the given answer choices rather than the actual answers. Reason being there are lots of people (me being one of them) that try to backsolve the question.
  4. Spiderman or any other experts here: Please comment on my understanding of your explanation and point out errors, if any. y=2x+3 intersects +ve y-axis because y intercept is 3 and -ve x-axis because slope is 2 ( +ve slope = line rises left to right, since it intercepts y axis at 3 so it has to intercept -ve x-axis). Given parabola =n as ax^2 + 3x + 1 , this means that parabola axis is parallel to y-axis and a is non-zero. So parabola will face either up or down. I understand the fact that line intercepts y-axis at 3, but do not get how parabola intercept y-axis at 1 . Continuing further on parabolas, if the =n of parabola is of the form x = ay^2 + by + c ; where a is non-zero then the parabola axis is parallel to x-axis. In this case parabola will either face left or right. Left when a > 0 and right when a TIA for all the responses
  5. Doesn't modulus mean |x| = -x for x = 0 Applying this definition to |x+1| = 2 |x-1| shouldn't it be x+1 = 2 (x-1) or -(x + 1) = -2(x-1) instead of what is given above ? Appreciate help in clarifying this concept.
  6. Second statement in Q1 states : Sandra will have saved $110 in the account this month. Maybe I am splitting hair but I was thinking could it be interpreted in this way: This month's saving plus what she may already have saved in the month before equals 110. If that is true, then we don't know how much she saved this month.
  7. I think for question 3 the answer is E. There are still some unknowns left even after after trying to narrow them down. Coming back to my doubt. From the above it seems that we are assuming that Sandra saves $110 per month. The second statement does not seem to imply that. Would like to hear your line of reasoning. Thanks.
  8. What is the reasoning for two X's and division by 3 ? Is it because the evaluations given and left are expressed in 3'rds?
  9. Sorry missed it the first time. Modified the question. 314 is the right answer for the second question.
  10. Darlene averaged a score of 70 out of 110 on evaluations from 1/3rd of her supervisors. If Darlene wishes to average a score of 90 out of 110 on all of her evaluations, by approximately what percent must her average score increase on the remaining 2/3rd of the evaluations? 20% 28% 30% 43% 50% In a decreasing sequence of 8 consecutive integers, the sum of the last 4 integers is 298. What is the sum of the first 4 integers in the decreasing sequence? 314 303 301 298 277
  11. One more way to do this is to find all the prime factors of 441 till u get one. I usually start with the smallest prime factor possible. 441/3 = 147 147/7 = 21 21/7 = 3 3/3 = 1 Now 3x3x7x7 are the prime factors of 441. From these prime factors I can find all the possible factors of 441. To do so I have to think of every possible unique combination that I can come up with using 3,3,7 and 7 3 7 3x3 3x7 7x7 3x3x7 3x7x7 are the sever possible unique combinations that I can come up with. Notice how I started with one digit , then two digit combination and so on. This way I make sure that I do not miss out something. Further 1 and 441 are there too. So total of 9 factors.
  12. Is the answer E ? Would be nice if the author of a post can post answers to the questions that the are posted in any of the forums here. Helps clear any ambiguity .
  13. Duh !! ..... :) Must have been sleepy :) Hope I don't do same on the day of reckoning
  14. Why is it 2/5 instead of 38/95 ? Don't get it. 38 is the no of desicred out comes i.e. for all n where n(n+1) is divisible by 5 95 is the possible outcomes i.e. 156-56+1 Thanks in advance
  15. UCB (Univ. of Calif. at Berkeley) offers a MS finance program. Check their site for details
  16. OR we can back solve it Example If the length is 36. Then three equal parts will be 12 , 12 , 12 . 12 is evenly divisible by 4 and 6 but not by 8 so 36 cannot be length of the wire. Consider 72. Three equal parts are 24, 24 ,24 . 24 is evenly divisible by 4, 6 and 8 hence 72 is the length of the wire.
  17. I don't get the 7!/3! part ? Did u use permutations here OR something else?. Please elaborate. Thanks
  18. Won't there be 120 possible outcomes ? L1 L2 L3 L4 L5 L6 L7 1 x 5 x 4x 3x 2 x1 x1 L1 = A always L7 = Y always L2 can be arranged in 5 different ways, L3 in 4 diff. ways and so on.
  19. stmifx

    Coin

    3H and 2 T => 5C3 for heads and 5C2 for tails. So shouldn't it be 10x10 ?
  20. This is from #248 in [tooltip=Official Guide]OG[/tooltip]. Question states is 1/p > r/r^2 + 2 1) p = r 2) r > 0 If we solve the above inequality can it be written as r^2+2 > pr OR pr > r^2 + 2 ? If yes, then what is the answer that you think is the right one and if not, pls. explain why the above inequality cannot be written as above.
  21. I actually used S.I=RxPxT (R= rate of interest, P = principal, T = time) to get 0.06 as the interest rate. I ignored the basic fact that first $25 will earn interest for 36 months, second $25 for next 35 months and so on... However I don't still get the above solution. Spiderman, you mind giving the more details.
  22. 1) For what value of p is the expression 2(x*x*x)-3(x*x)+7x+p divisible by x+1 ? 2) If $25 is invested at the beginning of each month for 36 months and one get $1066.50 at the end, find the simple interest rate. Isn't the SI around 0.6%
  23. Here is the visual representation. It is sort of grainy as I had to limit the file size. Hope this helps.rectangle1.doc
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