Search found 30 matches
- by shilotilo
Mon Jun 30, 2008 4:44 am- Forum: Data Sufficiency
- Topic: GMATPrep ---3 problems ---inequalities, remainders etc
- Replies: 5
- Views: 1689
- by shilotilo
Sun Jun 29, 2008 4:05 pm- Forum: Data Sufficiency
- Topic: GMATPrep ---3 problems ---inequalities, remainders etc
- Replies: 5
- Views: 1689
GMATPrep ---3 problems ---inequalities, remainders etc
Hi, Could someone please help me understand the answers to the following three GMATPrep problems? Thanks. 1) If k is not equal to 0,1 or -1, is 1/k > 0? i) 1/ (k-1) > 0 (Sufficient) ii) 1/ (k+1) > 0 (Don't know) 2) When the +ve integer n is divided by 25, the remainder is 13. What is the value of n?...
- by shilotilo
Sun Jun 29, 2008 6:52 am- Forum: Data Sufficiency
- Topic: GMATPrep ---3 problems ---inequalities, remainders etc
- Replies: 5
- Views: 1689
GMATPrep -- Ratio of the number of boxes
Hi, This is the Q for which I am getting C as the answer, but the OA is E ---- L, R and P packed a certain number of boxes with books. What is the ratio of the number of boxes that R packed to the number of boxes that P packed? 1) L packed 30% of the total no. of boxes. (Obviously, insufficient) 2) ...
- by shilotilo
Sun Jun 29, 2008 6:33 am- Forum: Data Sufficiency
- Topic: GMATPrep -- Ratio of the number of boxes
- Replies: 1
- Views: 1404
Hi, Why not C? I think the question stem translates finally into is minus b/a greater than 0 or , final translation, is b/a less than 0 (the minus key is not working in my keyboard) Taking both the statements together, we get a, as well as b, is greater than 0. So b/a is greater than 0. C answers th...
- by shilotilo
Mon Jun 23, 2008 6:35 pm- Forum: Data Sufficiency
- Topic: More Number Properties
- Replies: 4
- Views: 1709
Hi Rosh, I did it (after trial and error) in a shorter way: You have to keep in mind that when two equal bases with different or same powers get multiplied, the powers actually get added. Hence, 2^x - 2^x-2 can also be re-written as 2^x-2 (2^2 -1) (In case this step isn't clear, just think, what wil...
- by shilotilo
Sat Jun 21, 2008 11:27 pm- Forum: Problem Solving
- Topic: Quick way to figure out exponents?
- Replies: 3
- Views: 2575
Hi, Tata -Mcgraw -Hill are the publishers. You can google this book. I think you can order it online. I am not too sure. I have seen a copy of it on the ebay.in too (I don't know about ebay.com). But the CAT (specially the scores required for the IIMs) is a very very tough exam, so I am not sure if ...
- by shilotilo
Sat Jun 21, 2008 8:29 am- Forum: Problem Solving
- Topic: I NEED TO FIND SOME MATH QUESTIONS (DIFFICULT) FOR PRACTICE
- Replies: 5
- Views: 1828
Hi krsh,
Thank you for your reply.
I solved Q.2. My query was whether there was a quick way to know which squares we were looking for in the first place.
About Q3, The answer is p^2q^2. The solution is in the link in one of the posts above.
Shilo
- by shilotilo
Sat Jun 21, 2008 8:23 am- Forum: Problem Solving
- Topic: Power Prep Number Properties Woes :(
- Replies: 10
- Views: 2580
Hi Ian,
Thank you for your reply. Now that you've explained it so clearly, there is no paradox.
Shilo
- by shilotilo
Fri Jun 20, 2008 8:49 pm- Forum: Problem Solving
- Topic: Power Prep Number Properties Woes :(
- Replies: 10
- Views: 2580
- by shilotilo
Fri Jun 20, 2008 7:08 am- Forum: Problem Solving
- Topic: Power Prep Number Properties Woes :(
- Replies: 10
- Views: 2580
Hi g_beatthegmat, Thank you for your prompt reply! However, I still have a question about the first problem. I thought a "must be true" question is the one in which the the answer always has to meet the given criterion. I understand that 1.9*0.9 is greater than 1. But if I try 1.5*0.5, I w...
- by shilotilo
Fri Jun 20, 2008 5:10 am- Forum: Problem Solving
- Topic: Power Prep Number Properties Woes :(
- Replies: 10
- Views: 2580
Power Prep Number Properties Woes :(
Hi, I have a problem with each of the following problems that came up in the Power Prep: 1) If If r lies between 0 and 1 and s lies between 1 and 2, which of the following must be less than 1? I r/s II rs III s-r My answer is I and II, while the answer given is "only I". How come? 2)Is the...
- by shilotilo
Fri Jun 20, 2008 4:16 am- Forum: Problem Solving
- Topic: Power Prep Number Properties Woes :(
- Replies: 10
- Views: 2580
Hi, If you are from India, You could try out the problems from Arun Sharma's Quantitative Aptitude. It has a range of problems, in the same topics as those tested in the GMAT but different in the difficulty range as the problems are written for those appearing for the CAT (the entrance exam for the ...
- by shilotilo
Fri Jun 20, 2008 4:00 am- Forum: Problem Solving
- Topic: I NEED TO FIND SOME MATH QUESTIONS (DIFFICULT) FOR PRACTICE
- Replies: 5
- Views: 1828
- by shilotilo
Wed Jun 18, 2008 8:22 am- Forum: Problem Solving
- Topic: Probability --Consecutive days
- Replies: 4
- Views: 6677
Probability --Consecutive days
Hi, Can someone please help me with the following question? --- Alice and Bob can go to the market once on either of the following days -- Tuesday...Saturday. What is the probability of them having gone to the market on consecutive days? I am getting a 4/5. But the answer is 8/25. How come? Thanks. ...
- by shilotilo
Tue Jun 17, 2008 11:34 pm- Forum: Problem Solving
- Topic: Probability --Consecutive days
- Replies: 4
- Views: 6677