Search found 60 matches
ps set
See attached file.
Getting the first part of the equation is no problem, but how do you get the perimeter of the cone part with the given info?
OA is B.
- by thumpin_termis
Fri Jul 06, 2007 5:29 pm- Forum: Problem Solving
- Topic: ps set
- Replies: 5
- Views: 2288
thanks again termis. This must be why my weakpoint for the GMAT in the verbal section is CR - I don't read carefully enough. How can I fix this? :lol: I'm no better, really. I've been doing sets of problems on a regular basis for 4 months now, so I do catch myself more often before I do something s...
- by thumpin_termis
Thu Jul 05, 2007 7:03 pm- Forum: Problem Solving
- Topic: Gmatprep probability
- Replies: 4
- Views: 1896
Here's how I set it up. let x be the growth in each year so at the end of 4th year, the tree is 4+4x tall, and at the end of 6th year, it's 4+6x. Is states that at the end of 6th year, the tree is 1/5 taller, which means it's 20% taller, or that it's 6/5 height of the tree from its 4th year. Algebra...
- by thumpin_termis
Thu Jul 05, 2007 6:42 pm- Forum: Problem Solving
- Topic: gmatprep word problem
- Replies: 1
- Views: 1575
Re: Gmatprep probability
From a bag containing 12 blue balls, y yellow ball, and no ther balls, one ball will be removed at random. If the probability of selecting a blue ball is less than 2/5, what is the least number of yellow balls that must be in the bag? 1-17 2-18 3-19 4-20 5-21 I keep getting 18, OA is 19. Can someon...
- by thumpin_termis
Thu Jul 05, 2007 6:29 pm- Forum: Problem Solving
- Topic: Gmatprep probability
- Replies: 4
- Views: 1896
The given statement says wx=y, and we want to find xy. This can also mean: xy = x(wx) = wx^2 : Substituting y from given info. With that, we know, Statement (1): this gives the exact info we need. wx^2 = 16. Sufficient. Statement (2): We only know y, and have no way of finding out x. Insufficient. A...
- by thumpin_termis
Thu Jul 05, 2007 6:19 pm- Forum: Problem Solving
- Topic: Gmatprep DS
- Replies: 6
- Views: 3261
The main point here is that:
2^3^2 is NOT equal to (2^3)^2
1. 2^3^2 = 2^9
2. (2^3)^2 = 2^6
If you see that, then it's
(2^3^2) / 2^1 = 2^9 / 2 = 2^8
- by thumpin_termis
Thu Jul 05, 2007 6:11 pm- Forum: Problem Solving
- Topic: Gmatprep exponents
- Replies: 2
- Views: 1665
Ah, I just got it. The entire outer semi-circle's radius is 20m, whereas I was doing 20m + 10m from the shaded portion.
Damn the wording of these questions! 
- by thumpin_termis
Thu Jul 05, 2007 3:58 pm- Forum: Problem Solving
- Topic: PS Geometry:
- Replies: 1
- Views: 1492
- by thumpin_termis
Thu Jul 05, 2007 3:51 pm- Forum: Problem Solving
- Topic: PS Geometry:
- Replies: 1
- Views: 1492
How do you know AC is equal to AB=BC?Anonymous wrote:The way I look at it...
AB=BC=AC
so it is an equilateral triangle (60 degrees)
Therefore, angle BAD is 120 degrees...
and since BA=AD
60/2 = 30
- by thumpin_termis
Thu Jul 05, 2007 2:40 pm- Forum: Problem Solving
- Topic: PS:
- Replies: 2
- Views: 2088
- by thumpin_termis
Thu Jul 05, 2007 1:55 pm- Forum: Problem Solving
- Topic: PS:
- Replies: 2
- Views: 2088
PS set:
In the figure above, D is a point on the side AC of triangle ABC. Is triangle ABC an isosceles? (1) The area of triangle region ABD is equal to the area of triangular region DBC. (2) BD is perpendicular to AC, and AD = DC. . . . . . . . . . The answer is B. I'm just a bit confused with statement 2. ...
- by thumpin_termis
Thu Jul 05, 2007 11:46 am- Forum: Data Sufficiency
- Topic: PS set:
- Replies: 1
- Views: 1674
Geometry Problem
We have a square ABCD with sides = 1, and BE=1, and AE=CE.
What is the area of triangle ABE?
I believe the answer is = sqrt(2) / 4 (and I'm not sure about this), but I don't know how to work this out.
Anyone have a clue?
- by thumpin_termis
Wed Jun 27, 2007 7:09 pm- Forum: Problem Solving
- Topic: Geometry Problem
- Replies: 1
- Views: 1667
Re: PS Set - 2
A certain business printer can print 40 characters per second, which is 4 times as fast as an average printer. If an average printer can print 5 times as fast as an electric typewriter, how many characters per minute can an electric typewriter print? (A) 2 (B) 32 (C) 50 (D) 120 (E) 600 Sol'n: 120 b...
- by thumpin_termis
Tue Jun 19, 2007 1:28 pm- Forum: Problem Solving
- Topic: PS Set - 2
- Replies: 2
- Views: 2013
I saw this one posted not too long ago. Lemme see if I can do this correctly. As you say, the diagonals of the squares show that the rectangle's L:W ratio is 2:1. That means you can solve it so that L = 2W. Since the perimeter is 18SQRT2, that means 2L + 2W = 18SQRT2 2(2W) + 2W = 18SQRT2 4W + 2W = 1...
- by thumpin_termis
Tue Jun 19, 2007 8:35 am- Forum: Problem Solving
- Topic: ps question
- Replies: 2
- Views: 1827
Either the question or the OA is wrong. I also get 1.62 for fries. If the cost of fries were really .90, then that means: h + f = 4.40 h + .90 = 4.40 h = 4.40 - .90 h = 3.50 If we stick this back into the coleslaw equation, h + c = 3.59 3.50 + c = 3.59 c = 3.59 - 3.50 c = 0.09 And this means that fr...
- by thumpin_termis
Mon Jun 18, 2007 7:54 pm- Forum: Problem Solving
- Topic: PS - Set1
- Replies: 3
- Views: 1812