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GREMAT

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GREMAT last won the day on October 22 2006

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  1. Congratulations! So, do you want to go to top 10 schools or others? Indian pool is very competitive, especially in quant.
  2. Awesome!!!! So, what schools are your choice?
  3. thankont explained this visually. Ans is clearly C.
  4. I advise you concentrate on the verbal. Manhattan SC book is a must! Do those SETS 21-30 that high-scorers (V45+) have been talking about and you should touch V40. Math will be better next time anyway because now you know what to expect and you will be more relaxed. Good luck!
  5. The safest way is to go to the web sites of the schools you want to apply to and search for the GMAT score they take into account. Every school gives this info on a web site. I know that Harvard, Columbia, Stanford, MIT, Wharton look only at the score you report - i.e. your highest score. If you are so confident, then go and retake the test, don¸t leave this score to bother you the rest of your life (I would do so), you can¸t loose anything.
  6. Ans A we need form n*(n+1)*(n+2) to capture at least one number divisible by 3. As n>6, then n*(n+1)*(n-4) is divisible by 3(just add 6 to (n-4) and get n+2). This wouldn`t be the case with n=5, for example,because then answer C would also be valid as zero is divisible by an integer...
  7. How much time did it take a certain car to travel 400 kilometers? (1)The car traveled the first 200 kiometers in 2.5 hours (2)If the car`s average speed had been 20 km/h greater than it was, it would have traveled the 400 kilometers in 1 hour less time than it did Solution: Stat 1 is insufficient. Stat 2 t=d/s from the q stem: t2=t1-1 (in hours) where t1 is time with normal speed, t2 is time with 20km/h greater speed 400/(s+20)=(400/s)-1 400s=(400-s)*(s+20) s^2+20s-8000=0 s=80 so, normal speed is 80 km/h t1=400/80=5h, which is the answer to the question t2=400/100=4h the difference is 1h Stat 2 is sufficient Ans B
  8. Congratulations, this is a great score anyway! In my opinion, 680 should be ok for Michigan and Duke. In combination with your extensive work experience, and other personal stuff, you should get in. However, you know that it is hard to evaluate the chances only based on GMAT, GPA and WE. I saw that Columbia accepted applicants with GMAT 520, but those applicants had other strenghts that compensated really bad GMAT score. Good luck!
  9. You have to distinguish two things: -existence of emergency situation (0.002) -probability that the alarm will respond to the emergency situation (0.98) Hence, alarm sounds when rare emg. situation exists: 0.98*0.002=0.00196 There is a possibility that the emergency situation exists and that the alarm fails to respond (1-0.98). This is like when a building that has an alarm, and one day a thief breaks in. The alarm may and may not sound. There is also a probability that the alarm sounds and that the emergency situation does not exist. Like when a vibration from a truck trigers the alarm. alarm sounds when rare emg. situation doesn`t exist: 0,01*0,998=0.00998 Therefore, when the alarm sounds, it may or may not be an emergency situation. These two events are independent and we have to add their probability.0.00196+0.00998=0.01194 The question is what is the probability that emergency situation trigered the alarm, if the alarm already sounds. We have to divide probability of the emergency trigered alarm to the added probability of emergency and non-emergency trigered alarm, which represents any case when the alarm sounds. So, the ans is 0.00196/0.01194=0.164 HTH
  10. as the angles x,y,z are the same in both triangles, than the ratio of the sides (and the heights) is also the same. area of a triangle=side*height/2 let h=height of the smaller triangle let H=height of the greater triangle s/S=h/H S*h=s*H h=(s*H)/S area of the greater triangle is two times the area of the smaller triangle. 2*(s*h/2)=S*H/2 2sh=SH now lets put h=(s*H)/S in 2sh=SH we get: 2*s*((s*H)/S)=S*H 2*s^2*H=S^2*H 2*s^2=S^2 S=s*sqrt2 The ans is C What is the OA?
  11. The lenght of a raisable section is 28m. When two sections overlap 2m, the total lenght is 28+(28-2)=54m When a raisable section is raised to 60 degrees, its highest point is 28/2=14m away from the shore (horizontally). Therefore, the clearance width is 54m-2*14m=26m The ans is 26. Draw a picture to clarify this.
  12. alarm sounds when rare emg. situation exists: 0.98*0.002=0.00196 alarm sounds when rare emg. situation doesn`t exist: 0,01*0,998=0.00998 total probability that the alarm sounds: 0.00196+0.00998=0.01194 answer: 0.00196/0.01194=0.164 What is the OA, please?
  13. Mike, I am sorry that you couldn¸t reach 780. This score requires making just few mistakes in 37+41 questions, which is really tough. We are getting back to the question of all questions: HOW TO PREPARE FOR SCORING 800??? Is it a matter of pure intelligence? What prep material is at this level (except GPREP)? Good luck with HBS; 740 is a great score, concentrate on the app!
  14. How do you guys manage applying to nine schools? I think that even five apps would blow my mind...
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