Search found 127 matches
- by XLogic
Sat Oct 13, 2012 9:29 am- Forum: Sentence Correction
- Topic: Looking for some Verbal and FLT test
- Replies: 1
- Views: 1142
Are there any suggestions for me to go about this? Should I continue taking notes? Are there methods to read and be able to store what I've learnt in my head permanently... or at least till after getting my 700 score? =D Thank you! Continue doing whatever makes you understand what you are reading. ...
- by XLogic
Sat Oct 13, 2012 1:58 am- Forum: GMAT Strategy
- Topic: To take notes or not to take notes?
- Replies: 3
- Views: 1096
Can you please tell me some strategy for CR and SC ?? CR -- You must know the question types and what your task is for each type Assumption: Find the conclusion! What is the Gap between Premise and conclusion. i.e., what's in the conclusion that's not in the premise? Strengthen/Weaken: Find the con...
- by XLogic
Sat Oct 13, 2012 1:48 am- Forum: GMAT Strategy
- Topic: GMAT Strategy advice - One Month from GMAT
- Replies: 6
- Views: 3077
Hmm... I wonder if you shouldn't be even more strategic about this. If RC is your worst section, why not cut your losses there and focus on the sections that will provide the highest return on your investment. Not to say that you shouldn't practice RC passages between now and D-day, but instead of g...
- by XLogic
Sat Oct 13, 2012 1:06 am- Forum: GMAT Strategy
- Topic: 14 days to go, and i feel lost !
- Replies: 3
- Views: 1323
Re-do passages you've already done before. Try to figure out what types of questions you usually miss or find most challenging. For example, do you miss main point/purpose questions, or inference questions, or questions involving quotes etc. So, instead of just practicing tons of RC passages (quanti...
- by XLogic
Sat Oct 13, 2012 12:38 am- Forum: Reading Comprehension
- Topic: How to improve at RC ?
- Replies: 7
- Views: 2431
My mistake. The question is incomplete.
I think Anurag has it right.
@Anurag, is there a way to do this without listing everything out like that? i.e., using permutations + probability? Thanks.
- by XLogic
Mon Apr 16, 2012 10:31 pm- Forum: Problem Solving
- Topic: Sum of a fair die
- Replies: 7
- Views: 1578
Sum of a fair die
A fair die is rolled twice. What is the probabilty that the sum of the landed sides are divisible by 2.
A) 6
B) 1/36
C) 1/6
D) 1/192
E) 36
OA:[spoiler]Really?[/spoiler]
- by XLogic
Mon Apr 16, 2012 7:41 pm- Forum: Problem Solving
- Topic: Sum of a fair die
- Replies: 7
- Views: 1578
@Killer, you don't just have 2 tails out of 4. You have X number of ways of getting 2 out of 4. If we simplified the question to: If I tossed a fair coin 3 times, what is the probability of heads showing up exactly twice? The question is how many ways is this possible: HHT or HTH or THH Therefore we...
- by XLogic
Sun Apr 15, 2012 6:30 pm- Forum: Problem Solving
- Topic: Unfair coin flip
- Replies: 8
- Views: 2034
I did similar to Neo.
P(fair) = (1/2)^4 * 4C2
= (1/2)^4 * 4!/2!2!
= (1/2)^4 * 6
P(unfair) = (2/5)^2 * (3/5)^2 * 6
= (6/25)^2 * 6
P(unfair or fair) = (6/25)^2 * 6 + (1/2)^4 *6
= 6*[(6/25)^2 + (1/2)^4)]
- by XLogic
Sun Apr 15, 2012 1:16 pm- Forum: Problem Solving
- Topic: Unfair coin flip
- Replies: 8
- Views: 2034
- by XLogic
Sun Apr 15, 2012 1:02 pm- Forum: Problem Solving
- Topic: [to be deleted]
- Replies: 0
- Views: 909
Unfair coin flip
A bag contains 2 fair coins and 2 unfair coins. Both unfair coins have a 60 percent chance of showing up Heads if flipped. If I pick a coin from the bag and flip it 4 times, what is the probability that I will come up with tails 2 out of the 4 flips?
- by XLogic
Sun Apr 15, 2012 3:03 am- Forum: Problem Solving
- Topic: Unfair coin flip
- Replies: 8
- Views: 2034
- by XLogic
Sat Apr 14, 2012 10:23 am- Forum: Problem Solving
- Topic: Lottery game with great odds!
- Replies: 4
- Views: 1141
Lottery game with great odds!
To win a particular lottery game, a player chooses 4 numbers from 1 to 10. Each number can only be chosen once. If all 4 numbers match the 4 winning numbers, regardless of order, the player wins. What is the likelihood that the winning numbers are 3, 2, 7, and 5. A) 1/5040 B) 1/10000 C) 1/21 D) 1/21...
- by XLogic
Sat Apr 14, 2012 10:06 am- Forum: Problem Solving
- Topic: Lottery game with great odds!
- Replies: 4
- Views: 1141
I bet you learned a lot about yourself during this process -- dedicated, resourceful, persistent.
Great stuff. Congratulations!
- by XLogic
Tue Mar 06, 2012 12:52 pm- Forum: I just Beat The GMAT!
- Topic: Story of my 720, two long years and 5 attempts
- Replies: 29
- Views: 17987
OA = E The argument basically takes the form of: If shellfish is present in dish X, then phosphates is present dish X. And if phosphates is present, then some people will have an allergic reaction to phosphates. Note that this is not a general allergic reaction, but rather a specific allergic reacti...
- by XLogic
Tue Nov 29, 2011 11:02 pm- Forum: Critical Reasoning
- Topic: Shellfish Allergies!
- Replies: 7
- Views: 1858