Search found 12 matches
Can anyone explain why you can't factor with these types of questions? I factored also, but got D since you can factor as mx - kx > my - ky x(m-k) > y(m - k) I assume the answer is because the factors are critical in answering the question so we should never factor out terms for data sufficiency pr...
- by santhosh_katkurwar
Mon Dec 18, 2017 12:08 am- Forum: Data Sufficiency
- Topic: If m, k, x and y are positive numbers...
- Replies: 14
- Views: 6501
Thanks for the wonderful explaination Brent. Since the question used "atleast" in the question - I was wandering if we could this solve this using complement method in probability.
- by santhosh_katkurwar
Mon Nov 20, 2017 9:07 am- Forum: Problem Solving
- Topic: probability- confusing ques
- Replies: 9
- Views: 5308
- by santhosh_katkurwar
Mon Nov 20, 2017 2:56 am- Forum: Problem Solving
- Topic: probability- confusing ques
- Replies: 9
- Views: 5308
Thanks for the wonderful explanation. I have one doubt though -what if the questions ask the probability of two white balls? Then it will be considered as independent event right? Each of the 25 balls in a certain box is either red, blue, or white and has a number from 1 to 10 painted on it. If one ...
- by santhosh_katkurwar
Fri Nov 17, 2017 11:44 pm- Forum: Data Sufficiency
- Topic: Pure luck
- Replies: 12
- Views: 5691
- by santhosh_katkurwar
Tue Nov 14, 2017 9:23 am- Forum: Problem Solving
- Topic: Work Problem
- Replies: 5
- Views: 6439
I understand we can solve this by venn diagram or grid but Can someone also solve this formula also?
Total = Group 1 + group 2 - both + neither
200 = 60 +80 - both + neither
Now I am not able to go ahead with the fact statements. Please help.
- by santhosh_katkurwar
Wed Nov 01, 2017 6:05 am- Forum: Data Sufficiency
- Topic: survey of 200 college grads
- Replies: 13
- Views: 7209
Can someone explain with testing values approach. Also, what does it mean when questions in terms of something ? Here we need to find out in terms of m, y is what percent of x? I could write this y = ?/100 *x but i dint get it when it says in terms of x.
- by santhosh_katkurwar
Wed Oct 25, 2017 3:09 am- Forum: Problem Solving
- Topic: If m > 0 and x is ............
- Replies: 9
- Views: 5829
SUM OF EVEN NUMBERS: Formula: N(N+1) How to Find N = (First Even + Last Even)/2 - 1 Example: 2+4+6+ ....... 100 N = (2+100)/2 - 1 = 50 Sum of first 50 positive even integers = (50)(51) = 2550 with the above formula....I tried to solve this question but I got it wrong For any positive integer n, the ...
- by santhosh_katkurwar
Sun Oct 22, 2017 5:35 am- Forum: GMAT Math
- Topic: Formula for consecutive, even, odd integers
- Replies: 12
- Views: 658625
Hi Brent,
Is it possible to find through method after finding the number of integers?
Thanks,
Santosh
- by santhosh_katkurwar
Tue Oct 03, 2017 11:25 am- Forum: Problem Solving
- Topic: problem solving- how many integers
- Replies: 4
- Views: 1999
- by santhosh_katkurwar
Sat Sep 30, 2017 1:13 am- Forum: Problem Solving
- Topic: Coins and total value
- Replies: 9
- Views: 4712
Hi Brent,
Can you please explain this in detail. what exactly is the question asking and we need to find?
- by santhosh_katkurwar
Wed Sep 27, 2017 2:23 am- Forum: Problem Solving
- Topic: Distance between cities(table)
- Replies: 7
- Views: 5534
- by santhosh_katkurwar
Tue Aug 29, 2017 3:05 am- Forum: Problem Solving
- Topic: Pls explain
- Replies: 8
- Views: 3330