Search found 109 matches
What if we start with choosing from followers, we again get 3/20,000 and then if we add the two cases we get 3/10,000? I always get confused on when to add and when not Just a little thought on your logic, you could add them both together as you did, but you would need to add one more variable. By ...
- by jeffedwards
Fri Jul 02, 2010 2:51 pm- Forum: Problem Solving
- Topic: Probability Married Couple
- Replies: 9
- Views: 2181
IMO B The editorial says the president made a good decision Why? Because, he made the decision knowing people would oppose it. Courage is mentioned, reasoning is not B – yep, that’s what I think Paes, C is out of scope, because the argument is that the president made a good decision, whether or ...
- by jeffedwards
Wed Jun 30, 2010 4:59 pm- Forum: Critical Reasoning
- Topic: flawed reasoning
- Replies: 4
- Views: 1942
Don’t worry about the simultaneous stuff, just solve it as normal. You can eye these, but I wrote out the long way to solve, since that seems to be your main question A- Sufficient (x/10)*((x-1)/(10-1)) (x^2-x)/90 x^2-x-6=0 x= 3 or -2 so x= 3 B- Sufficient Slightly trickier (x/10)*((10-x)/(10-1)) ...
- by jeffedwards
Wed Jun 30, 2010 4:22 pm- Forum: Data Sufficiency
- Topic: simultaneous probability
- Replies: 1
- Views: 2907
Another way, We know that there are 75 married couples, one person from each couple is in the leaders or the followers. So first, what’s the probability of getting a married person in the leaders 75/500 or 3/20 Then, what’s the probability of finding the selected married person’s spouse? 1/100...
- by jeffedwards
Wed Jun 30, 2010 3:53 pm- Forum: Problem Solving
- Topic: Probability Married Couple
- Replies: 9
- Views: 2181
E – 68
For the same reason as explained by vishubn. When the question asks what a number could be, it’s helpful to have the list, because there are normally multiple possible numbers that match such criteria.
- by jeffedwards
Fri Jun 11, 2010 7:16 pm- Forum: Problem Solving
- Topic: NECKLACE MATHS
- Replies: 4
- Views: 1660
A should read n is NOT divisible by 2 Wow, yep getting that piece of information sure does help; thanks. Now, I’m sure you got this too, but I’ll respond anyway. We can list out a few numbers that meet that criteria…1,5,7,11,13,17,19…. All of these numbers give a remainder of 0. Pretty cool...
- by jeffedwards
Thu Jun 10, 2010 10:06 pm- Forum: Problem Solving
- Topic: What is r?
- Replies: 7
- Views: 1238
You know I took the GMAT over three years ago...just did it on a whim without a lot of prep (this time i'm going to rock it). Anyway, i practiced from the official guide and it seemed as though many of the questions on the actual test were the same as in the guide, just with different numbers. The O...
- by jeffedwards
Thu Jun 10, 2010 6:28 pm- Forum: Problem Solving
- Topic: What is r?
- Replies: 7
- Views: 1238
What is the source? I quoted this problem from the document '198 700+ problems'. This is available for download from this community. However, I have no idea regarding the original source of this problem. Dang, doesn't that bug you. Got to love the OG...at least we know the answers in the guide are ...
- by jeffedwards
Thu Jun 10, 2010 5:56 pm- Forum: Problem Solving
- Topic: What is r?
- Replies: 7
- Views: 1238
IMO – A or 1 as you have shown
HA – you add caffeine to keep customers addicted
CM – there’s less caffeine than in the cocoa beans
A – Never addressed the issue of the amount of caffeine to stay addicted – this is my choice
What is the OA?
- by jeffedwards
Thu Jun 10, 2010 5:32 pm- Forum: Critical Reasoning
- Topic: Consumer Health Advocate
- Replies: 3
- Views: 4076
What is the source? I get the same as you. First, I simplified the top part of the fraction (n-1)(n+1) = (n^2) – (1^2) or (n^2) – 1 Now let’s just skip down and combine both statements. We know that n could equal 2,4,8,10,14 and so on Plug in for the first couple numbers For 2 we get a remaind...
- by jeffedwards
Thu Jun 10, 2010 5:19 pm- Forum: Problem Solving
- Topic: What is r?
- Replies: 7
- Views: 1238
martin.jonson007 wrote:
stil wud like to knw more comments on why D is wrong....
D – can be crossed off (second pass) because it’s wordy.
Giving compensation to…is not necessarily wrong, but it would be more concise to just say compensating, as it is in A
- by jeffedwards
Thu Jun 10, 2010 8:28 am- Forum: Sentence Correction
- Topic: Government and toxic chemicals
- Replies: 7
- Views: 1269
FYI: http://www.beatthegmat.com/federal-legislation-t42177.html It's an idiom question. I don't agree with that post, at least not "Permit... to..." The right idiom is: permit smb to do. I didn't find such constraction at this sentence. Can you explain your position about this idiomatic q...
- by jeffedwards
Wed Jun 09, 2010 4:29 pm- Forum: Sentence Correction
- Topic: Government and toxic chemicals
- Replies: 7
- Views: 1269
101 – 199 = 99 Tickets
200 – 299 = 100 Tickets
300 – 350 = 51 Tickets
100 / (99+100+51) - Number of choices that meet desired criteria over total number of choices
100 / 250
10 / 25
2 / 5
- by jeffedwards
Wed Jun 09, 2010 4:16 pm- Forum: Problem Solving
- Topic: TICKETS NUMBERED
- Replies: 2
- Views: 1091
10²-6² = √64 - dumb question ..but wat formula is this ? Yeah, that took me a bit too. What they are using is the Pythagorean Theorem – a^2 + b^2 = c^2. Hopefully you can picture what I’m explaining. We know that the radios is 10 right (the diameter is stated as 20; the radios is the length...
- by jeffedwards
Mon Jun 07, 2010 5:08 pm- Forum: Problem Solving
- Topic: Geometry Prob.
- Replies: 5
- Views: 1803
Since you asking about Subj Verb agreement. Subj: The trenches (the main noun performing the action) Verb: yielded (the action) We can now eliminate B & D A – eliminate because idiomatic problem. We don’t say yield evidence for ..should be of (followed by a noun) or that (followed by a noun ...
- by jeffedwards
Thu May 27, 2010 4:02 pm- Forum: Sentence Correction
- Topic: OG 12 #68
- Replies: 1
- Views: 1266