bonz103

To all the gmat gurus, i have trouble solving DS q's involving number properties in under 2 minutes b/c i try to plug diff numbers in (which sometimes takes me some time)... was wondering if you can provide me with some pointers, guides, etc. to improve my accuracy and speed? any help greatly appreciated! thx guys!

can someone pls also email me the soft copy of the manhattan sc to benji_hsu@hotmail.com ? thx!

pls explain: A survey of entrepreneurs who started companies last year shows that while virtually all did substantial preparatory research and planning, only half used that work to produce a formal business plan. Since, on average, the entrepreneurs w/o formal plans secured the capital they needed in half the time of those with plans, these survey results indicate that, in general, formal plans did not help the entrepreneurs who produced them to secure the capital they needed. Which of the following most seriously weakens the argument? A. Companies started by entrepreneurs who had used formal biz plans to attract investments were on teh whole as profitable in their first year as were companies started by entrepreneurs who had not produced such plans B. In surveys of entrepreneurs who have attempted w/o success to raise sufficient capital, more than half of the respondents indicate that they have produced a formal business plan C. Among the entrepreneurs surveyed, those who did not produce formal business plans sought and received a much larger proportion of their capital from investors with whom they had long-standing biz relationship D. The entrepreneurs surveyed who didn't produce a formal biz plan spent nearly as much time donig preparatory research and planning as the entrepreneurs who produced plans E. The entrepreneurs who produced business plans generally reported later that the process of writing the plan had increased their confidence that their company would succeed. OA

got this right, but want to see how u guys would solve it. thx! Working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of x units of product P in 6 days. How many of these machines, working simultaneously and independently at this constant rate, can produce a total of 3x units of product P in 4 days? A. 24 B. 18 C. 16 D. 12 E. 8 OA

awesome score! congrats!! best of luck on your apps

one more for D. argument states that number of potential employees will decrease; however, D clearly states the opposite (workforce has increased due to a greater # of workers who are not head of the households). hence, D weakens the conclusion above.

Sorry, can someone pls explain the OA? thx For one toss of a certain coin, the probability that the outcome is heads is 0.6. If the coin is tossed 5 times, which of the following is the probability that the outcome will be heads at least 4 times? A. 0.6^5 B. 2 * (0.6)^4 C. 3 * (0.6)^4 *(0.4) D. 4 * (0.6)^4 * (0.4) + (0.6)^5 E. 5 * (0.6)^4 * (0.4) + (0.6)^5 OA:

can someone pls explain how you would derive the OA? thx the sides of a square region, measured to the nearest cm, are 6 cm long. The least possible value of the actual area of the square region is: A. 36.00 B. 35.00 C. 33.75 D. 30.25 E. 25.00 OA:

pls explain - thx Q1 In Gandania, where government has a monopoly on tobacco sales, the incidence of smoking-related health problems has risen steadily for the last twenty years. The health secretary recently proposed a series of laws aimed at curtailing tobacco use in Gandania. Profits from tobacco sales, however, account for 10% of Gandania's annual revenues. Therefore, Gandania cannot afford to institute the proposed laws. Which of the following, if true, most seriously weakens the argument? A. All health care in Gandania is gov.-funded B. Implementing the proposed laws is not likely to cause a sig increase in the amt of tobacco Gandania exports C. The % of rev Gandania receives from tobacco sales has remained steady in recent years D. Profits from tobacco sales far surpass any other single source of revenues for the Gandanian gov E. No gov official in Gandania has ever previously proposed laws aimed at curtailing tobacco use Q2. Which of the following most logically completes the editorial below? Editorial in G Newspaper: For almost 3 months, opposition parties have been mounting daily street demonstrations in the capital in an effort to pressure the ruling party into calling an election. Though the demonstrations were well attended at first, attendance has declined steadily in recent weeks. However, the decline in attendance does not indicate that popular support for the opposition's demands is dropping, since ____ A. the opposition's demands have not changed during the period when the street demonstrations have been mounted B. no foreign govs have expressed any support for the opposition's demands C. The state-controlled media have ceased any mention of the demonstrations, leaving many ctiizens outside the capital with no way of knowing that demonstrations continue D. There have not recently been any anti-gov demonstrations in cities other than the capital E. a recent sharp decrease in unemployment has led to increased popular support for the gov Q3: Excavations of the Roman city of Sepphoris have uncovered numerous detailed mosaics depicting several readily identifiable animal species: a hare, a patridge, and various Mediterranean fish. Oddly, most of the species represented did not live in the Sepphoris region when these mosaics were created. Since identical motifs appear in mosaics found in other Roman cities, however, the mosaics of Sepphoris were very likely created by traveling artisans from some other part of the Roman empire. Which of the following is an assumption on which the argument depends? A. The Sepphoris mosaics are not composed exclusively of types of stones found naturally in teh Sepphoris area B. There is no single region to which all the species depeicted in the Sepphoris mosaics are native C. No motifs appear in the Sepphoris mosaics that do not also appear in the mosaics of some other Roman city D. All of the animal figures in the Sepphoris mosiacs are readily identifiable as representation of known species E. There was not a common repertory of mosaic designs with which artisans who lived in various parts of the Roman empire were familiar OA:

sorry, this may have been brought up before, but i couldn't find the thread so am posting again. still don't know how to reach the ans. thks the function f is defined for each positive three-digit integer n by f(n) = 2^x * 3^y * 5^z, where x, y, and z are the hundreds, tens and units digits of n, respectively. If m and v are three-digit positive integers such that f(m) = 9 * f(v), then m-v = A. 8 B. 9 C. 18 D. 20 E. 80 OA:

don't have the OA, but wld appreciate your thoughts on the ans: Q: Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally deer ticks pick up the bacterium while in the larval stage from feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease would likely decline. Which of the following, if true, most strengthens the argument? A) Ticks do not suffer any adverse consequences from carrying the bacterium that causes Lyme disease in humans. B) There are no known cases of a human’s contracting Lyme disease through contact with white-footed mice. C) A deer tick feeds only once while in the larval stage. D) A single host animal can be the source of bacterium for many tick larvae. E) None of the other species on which deer tick larvae feed harbor other bacteria that ticks transmit to humans

IMO C - the fact that 3 out of 4 hospitals administer patients Novex can be explained by an alternative reason (i.e. drug manufactuers sell to hospitals the cheapest drugs to earn profit), which weakens the original argument that Novex is the most effective painkiller for sinus pain since 3 out of 4 hospitals give their patients this drug

IMO C the argument is saying that the pharma's division is growing stronger; this is supported by evidence of an increase in profits. however, an increase in profits may not necessarily mean the pharma division is growing stronger.

Actual - 640 Practice Tests: GMATPrep 1: 690 GMATPrep 2: 710 Princeton Review CAT 1: 680 CAT 2: 670 CAT 3: 690 i guess i'm the only person that didn't get a score in-line with my gmatprep results...

just took the gmat a couple of min ago and was shocked to see my low score. i was very confident i would do well (given my recent mock exam scores), so was very depressed upon learning i was far from my target range :( . given i am currently in-between jobs in the finance industry, this was my only shot to do well given i had a 1.5 months to prepare and once i start working i will not have the time to study. In addition, this is my second time taking the exam, and the improvement has been very minimal. given apps are due in the next 2 months, i don't know whether i shld continue with the app process or just concentrate on my new job (given i only want to apply to a handful of schools). any advice much appreciated. most imptly, want to thank everyone on this forum as you've all helped me a great deal in the past month! hope i can also post something positive next time... below is a summary of my mock exams: Real GMAT 1st - 600 (44 Q, 28 V) 2nd - 640 (43 Q, 35 V) GMATPrep 1 - 690 (48 Q, 37 V) --> last week GMATPrep 2 - 710 (50 Q, 39 V) --> taken 2 days ago Princeton Review CAT CAT 1 - 680 (48 Q, 37 V) CAT 2 - 670 (47 Q, 35 V) CAT 3 - 690 (50 Q, 38 V)