Search found 5 matches
Number Properties
#224 from OG If n is a positive integer, then n(n+1)(n+2) is A) even only when n is even B) even only when n is odd C) odd whenever n is odd D) divisible by 3 only when n is odd E) divisible by 4 whenever n is even [spoiler]OG says answer is E, but if n = 3 which is an odd number wouldn't the equati...
- by KFreudenberg
Mon May 17, 2010 5:35 pm- Forum: Problem Solving
- Topic: Number Properties
- Replies: 2
- Views: 1180
To determine the slope you need to use y1-y2/x1-x2 For statement 1: (1, P) = (x1, y1) and (P, 13) = (x2, y2) so (P-13)/(1-P) = slope if P is 1 then there is a zero in the denominator which deems the slope undefined You could test other numbers to see that the slope could be positive, negative or zer...
- by KFreudenberg
Sun May 16, 2010 7:52 am- Forum: Data Sufficiency
- Topic: 309) is slope negative
- Replies: 2
- Views: 1099
Having Trouble Finish Quant Qs Within the Time Allotted
When I practice the OG quant problems I am able to finish them individually under 2 mins but both times I have taken the GMAT practice exams I didn't finish all the quant problems in 75 mins (not answering 5-10 questions!!). Suggestions/Advice?? Help!!
- by KFreudenberg
Sun May 16, 2010 5:19 am- Forum: GMAT Strategy
- Topic: Having Trouble Finish Quant Qs Within the Time Allotted
- Replies: 2
- Views: 1170
- by KFreudenberg
Fri May 14, 2010 6:03 pm- Forum: Problem Solving
- Topic: Exponent Question
- Replies: 2
- Views: 1104
Exponent Question
(1001^2 - 999^2) / (101^2 - 99^2) = ?
I have the answer for the above problem, but could use some guidance on an easy way to find this answer.
Thanks!!
- by KFreudenberg
Fri May 14, 2010 3:53 pm- Forum: Problem Solving
- Topic: Exponent Question
- Replies: 2
- Views: 1104