Search found 24 matches
I find the language used in the question ambiguous: (2)2n divisible by twice as many +ve integers as n I think it should read: " 2n divisible by twice as many +ve integers as does n " Else, possible interpretations: (a)2n has twice as many factors as "n" (b)2n has twice as many ...
- by peter456
Fri Apr 08, 2016 3:53 am- Forum: Data Sufficiency
- Topic: help
- Replies: 6
- Views: 1987
Thanks Rich & GmatGuru.
The said variables represent prices and would have several pairs of solution.
Paying careful attention to instructions is key.
- by peter456
Thu Apr 07, 2016 3:47 am- Forum: Data Sufficiency
- Topic: GMAT PREP ?? (Orchestra)
- Replies: 5
- Views: 5381
I find the language used in the question ambiguous: (2)2n divisible by twice as many +ve integers as n I think it should read: " 2n divisible by twice as many +ve integers as does n " Else, possible interpretations: (a)2n has twice as many factors as "n" (b)2n has twice as many f...
- by peter456
Thu Apr 07, 2016 3:02 am- Forum: Data Sufficiency
- Topic: help
- Replies: 6
- Views: 1987
An old thread though. Original question: 500x + 384b = 34,600 I was lured into thinking x and y each have a unique value. So, I chose B because then we would have: 500(0.8x) + 384b... x and b known from d original stem. I was wrong...how do I test whether an equation of such has a unique solution or...
- by peter456
Sat Apr 02, 2016 7:55 am- Forum: Data Sufficiency
- Topic: GMAT PREP ?? (Orchestra)
- Replies: 5
- Views: 5381
is SQRT[(x-3)^2] = 3-x
Is SQRT[(x-3)^2] = 3-x [/u]1st step I rephrased as: is |x-3|=x-3 Solution a: x-3=3-x => x=3 Solution b: x-3 = -(3-x)... 0=0...not valid So, only solution a is valid i.e is x=3? Implying A is sufficient 2nd step However, testing #s shows that all values less than 2 are valid. In this case, B is suffi...
- by peter456
Sat Apr 02, 2016 7:09 am- Forum: Problem Solving
- Topic: is SQRT[(x-3)^2] = 3-x
- Replies: 3
- Views: 1685
Pls go through the thread again from the start; i believe you will see why B is wrong.jain2016 wrote:Hi Experts ,
Please advise that why B is incorrect. I choose option B, but the OA is C.
Please explain.
Many thanks in advance.
SJ
Else, write back for further explanations
- by peter456
Thu Mar 31, 2016 5:29 am- Forum: Critical Reasoning
- Topic: CR - Cant reason the answer
- Replies: 12
- Views: 9219
The Erythrovirus412, which affects farmed Atlantic salmon, infects human beings by adhering to red blood cells. The virus elevates the body’s white blood cell count, indicating that the body is fighting an infection. Surprisingly, when a group of recently-infected people were tested, the proporti...
- by peter456
Tue Mar 22, 2016 3:38 pm- Forum: Critical Reasoning
- Topic: Erythrovirus412
- Replies: 9
- Views: 3265
My line of reasoning is that since r, s, and t are non-zero positive values, their average should be
(r+ s + t)/ 3...given that |R| = r; |S|=s; |T|=t
Kindly point where am making errors
Thank you
- by peter456
Fri Mar 11, 2016 9:20 am- Forum: Problem Solving
- Topic: the number line shown contains 3 points
- Replies: 6
- Views: 4834
Thanks GmatGuru.
On another hand, I think previous trends are not a guarantee for future occurence.
Would this line of reasoning be adequate to quickly eliminat C?
That to say even if C mentions weather impact causing a drop in price, the option would still not surfice.
- by peter456
Mon Mar 07, 2016 7:26 am- Forum: Critical Reasoning
- Topic: last year a global disturbance of weather patterns
- Replies: 19
- Views: 10178
- by peter456
Sun Mar 06, 2016 6:47 pm- Forum: Critical Reasoning
- Topic: last year a global disturbance of weather patterns
- Replies: 19
- Views: 10178
Hi peter456, This question can be solved by TESTing VALUES. Based on their positions on the number line, we know that S and T are POSITIVE and R is NEGATIVE, so let's TEST... R = -3 S = 1 T = 2 Since r, s and t are the ABSOLUTE VALUES of those 3 numbers, we have... r = 3 s = 1 t = 2 The question as...
- by peter456
Sun Mar 06, 2016 6:24 pm- Forum: Problem Solving
- Topic: the number line shown contains 3 points
- Replies: 6
- Views: 4834
Hi Murray,
Pls could u still help explain why C is wrong?
The increase in the price of soyabeans is consistent with previous trends.
Thanks
- by peter456
Sat Mar 05, 2016 12:19 pm- Forum: Critical Reasoning
- Topic: last year a global disturbance of weather patterns
- Replies: 19
- Views: 10178
- by peter456
Thu Mar 03, 2016 9:12 am- Forum: Critical Reasoning
- Topic: most of the year, the hemit thrush
- Replies: 4
- Views: 4584
the number line shown contains 3 points
The number line shown contains 3 points R, S, and T, whose coordinates have absolute values r, s, and t, respectively. Which of the following equals the average of the coordinates of the points R, S, and T? (A)s (B)s + t + r (C)(r-s-t)/3 (D)(r+s+t)/3 (E)(s+t-r)/3 Sorry I can't draw but just an idea;...
- by peter456
Thu Mar 03, 2016 8:28 am- Forum: Problem Solving
- Topic: the number line shown contains 3 points
- Replies: 6
- Views: 4834
most of the year, the hemit thrush
most of the year, the hemit thrush, a North American songbird, eats a diet consisting mainly of insects, but in autumn, as the thrushes migrate to their central and South American wintering grounds, they feed almost exclusively on wild berries. Wild berries, however, are not as rich as insetcs, yet ...
- by peter456
Wed Mar 02, 2016 6:22 am- Forum: Critical Reasoning
- Topic: most of the year, the hemit thrush
- Replies: 4
- Views: 4584