Search found 108 matches
- by alexdallas
Fri Aug 07, 2009 4:53 pm- Forum: Data Sufficiency
- Topic: If r is the remainder
- Replies: 4
- Views: 1486
2 Topics : Lines and Arithmetic Progressions
Hi guys These are the 2 topics that i always feel unsure of. Can someone please either list here all the notes relevant(if i'm missing any) to those 2 topics, or provide me with some complete links for the 2 topics? So far, this is what i know: LINES y=mx + b -i know what each variable stands for, w...
- by alexdallas
Wed Aug 05, 2009 3:18 pm- Forum: Problem Solving
- Topic: 2 Topics : Lines and Arithmetic Progressions
- Replies: 1
- Views: 1082
its PEMBAS.
parantheses- always come first.
so if you do the parantheses, that's (4-1)squared, which is 3squared, which is 9.
- by alexdallas
Sat Aug 01, 2009 2:27 pm- Forum: Problem Solving
- Topic: 2^(4-1)^2
- Replies: 14
- Views: 7661
i dont understand the 2nd part: "statement 2) each prime factor of x^2 means that each prime factor is odd. the fact that its greater than 7, means that its not 2, which is the only prime that is not odd. look at second term, (x+5). we know odd+odd=even and anything times even is even. sufficie...
- by alexdallas
Sat Aug 01, 2009 2:25 pm- Forum: Data Sufficiency
- Topic: If x is an integer, is
- Replies: 2
- Views: 1151
- by alexdallas
Sat Aug 01, 2009 1:05 pm- Forum: Problem Solving
- Topic: 2^(4-1)^2
- Replies: 14
- Views: 7661
- by alexdallas
Sat Aug 01, 2009 12:18 pm- Forum: Data Sufficiency
- Topic: If x is an integer, is
- Replies: 2
- Views: 1151
- by alexdallas
Sat Aug 01, 2009 11:13 am- Forum: Problem Solving
- Topic: 2^(4-1)^2
- Replies: 14
- Views: 7661
- by alexdallas
Sat Jul 18, 2009 4:01 pm- Forum: Reading Comprehension
- Topic: How to understand and remember author's flow of thoughts ?
- Replies: 13
- Views: 8094
- by alexdallas
Sat Jul 18, 2009 2:41 pm- Forum: Sentence Correction
- Topic: Three women ..
- Replies: 8
- Views: 4879
there was no 5th choice.
i think i was doing too many RC exercises at the time, and got confused. 
thanks Stuart
- by alexdallas
Sat Jul 18, 2009 2:37 pm- Forum: Problem Solving
- Topic: GMAT prep
- Replies: 9
- Views: 2197
- by alexdallas
Sat Jul 18, 2009 2:17 pm- Forum: Critical Reasoning
- Topic: gmat prep1 foodmarket supermarket
- Replies: 11
- Views: 7298
- by alexdallas
Sat Jul 18, 2009 2:13 pm- Forum: Problem Solving
- Topic: GMAT prep
- Replies: 9
- Views: 2197
oops
i meant to say:
the correct answer is D (4th choice).
i don't understand why C is(3rd answer choice) not correct.
- by alexdallas
Sat Jul 18, 2009 1:45 pm- Forum: Problem Solving
- Topic: GMAT prep
- Replies: 9
- Views: 2197
tks..couldnt really follow all of your notes, but you're right, we need to factor here, and then it worked out.
tks.
- by alexdallas
Sat Jul 18, 2009 1:44 pm- Forum: Data Sufficiency
- Topic: If 2^x.....- 3(2^13), what is the value of x?
- Replies: 2
- Views: 1245
- by alexdallas
Sat Jul 18, 2009 9:16 am- Forum: Data Sufficiency
- Topic: GMAT Prep - LCM
- Replies: 3
- Views: 3198