Search found 25 matches
- by larrybird
Wed Sep 09, 2009 6:33 am- Forum: GMAT Strategy
- Topic: Answer Distribution in Data Suff. on real GMAT
- Replies: 4
- Views: 1333
Answer Distribution in Data Suff. on real GMAT
Hi On GMAT Prep II i got 49% DS questions and 51% PS. Is this normal nowadays on the real test? Also the distribution of answers in DS was the following: a.11% b.6% c.33% d.11% e.39% Is this a little skewed towards e's and c's? Can we expect having so little b's? I ask because as i did the DS proble...
- by larrybird
Tue Sep 08, 2009 3:50 pm- Forum: GMAT Strategy
- Topic: Answer Distribution in Data Suff. on real GMAT
- Replies: 4
- Views: 1333
- by larrybird
Mon Sep 07, 2009 2:00 pm- Forum: Data Sufficiency
- Topic: Help on these two !!
- Replies: 2
- Views: 2102
Help on these two !!
1. n is posiitve integer. t is posiitve integer. When n is divided by 3 the remainder is 2. When t is divided by 5 the remainder is 3. What is the remander when n*t is divided by 15? i. n-2 is divisible by 5 ii. t is divisible by 3 OA after some discussion 2. IN 1995, Division A (DA) of Company X ha...
- by larrybird
Mon Sep 07, 2009 8:37 am- Forum: Data Sufficiency
- Topic: Help on these two !!
- Replies: 2
- Views: 2102
1. OK, tks 2. OA is 3/10. I guess you wanted to divide by 100 , right? A question on this one: can you assume that all purchases regarding bread miexs are zero?? If not, there is no way to solve this. 3. OA is 36 Initially I did a weighted average (1/6)* 25 + (5/6)*40 = 37.5 which is approx = 38 The...
- by larrybird
Mon Sep 07, 2009 8:28 am- Forum: Problem Solving
- Topic: Pls shed some light on these few official problems!
- Replies: 3
- Views: 1282
Pls shed some light on these few official problems!
Experts, here are 3 problems where I need help. Thanks a lot for the support! 1. Plz someone show how do this in a quick way (not just adding and finding the mean). Thanks! 70,75,80,85,90,105,105,130,130,130 The numbers above are the seconds it took each of 10 students to run 400 mts. If the standar...
- by larrybird
Mon Sep 07, 2009 6:17 am- Forum: Problem Solving
- Topic: Pls shed some light on these few official problems!
- Replies: 3
- Views: 1282
- by larrybird
Sun Sep 06, 2009 6:14 pm- Forum: Problem Solving
- Topic: help with this one ...thanks!
- Replies: 2
- Views: 1080
This is a common trap. GMAT wants you to just cancel the squared root with the power of two. But think about it: the stem only says that x cannot be zero. What happens if x is negative, for instance x=-1? Is the final correct answer c. 1 as you mention ??? No! the answer would be -1. Answer E is cor...
- by larrybird
Mon Aug 31, 2009 2:18 pm- Forum: Problem Solving
- Topic: value of expression
- Replies: 1
- Views: 1016
Chech when expression within absolute value is positive and negative: Case 1: -6<5t-8<1 2<5t<9 2/5<t<9/5 Case 2: -6<-(5t-8)<1 -6<-5t+8<1 -14<-5t<-7 -14/5<-t<-7/5 Multiply all by -1: 7/5<t<14/5 Finnaly the intersection of both Cases is: 7/5<t<9/5 IMO: D
- by larrybird
Mon Aug 31, 2009 2:03 pm- Forum: Problem Solving
- Topic: range for t
- Replies: 1
- Views: 1025
- by larrybird
Mon Aug 31, 2009 7:24 am- Forum: Problem Solving
- Topic: Help with this Geometry and DS problem pls!
- Replies: 3
- Views: 970
Help with this Geometry and DS problem pls!
Problem 1: In the figure (file attached), P and Q are on the circle with center O. What is the value of S? (Note(0,0) of X-Y plane is at center of circle) a. 0.5 b. 1.0 c. sqrt(2) d. sqrt(3) e. sqrt(2)/2 OA: b Problem 2: On the number line, the distance between X and Y is greater than the distance b...
- by larrybird
Mon Aug 31, 2009 6:19 am- Forum: Problem Solving
- Topic: Help with this Geometry and DS problem pls!
- Replies: 3
- Views: 970
Manhattan GMAT Sentence Correction guide
Hi Guys
Any reviews of this guide? Head it's really good for improving SC.
Anybody knows if it can be bought in a pdf file ???
I need it ASAP and it takes 10 days to get to my country.
thanks!
- by larrybird
Mon Aug 03, 2009 7:10 pm- Forum: GMAT Strategy
- Topic: Manhattan GMAT Sentence Correction guide
- Replies: 5
- Views: 1981
Freaking out with remainders
Experts:
I kind of freak out every time I see a question with remainders. Can anybody give me advice of a good tutorial to read out there to understand them better ? Or maybe line out the main concepts related of to this topic that are tested on GMAT?
Thanks !!!
- by larrybird
Fri Jul 10, 2009 8:24 am- Forum: GMAT Math
- Topic: Freaking out with remainders
- Replies: 5
- Views: 2422
- by larrybird
Sat Jul 04, 2009 6:44 pm- Forum: Problem Solving
- Topic: Short way for solving problem
- Replies: 5
- Views: 1303
- by larrybird
Sat Jul 04, 2009 6:26 pm- Forum: Problem Solving
- Topic: Short way for solving problem
- Replies: 5
- Views: 1303