Search found 14 matches
1) when x is multiplied by 8, the result is between 50 and 60 This statement in itself is insufficient as it may yield to many values of x. when x=6.5, x*8=52 when x=7, x*8=56 Insufficient. 2) when x is doubled, the result is between 10 and 15. x=5.5, 2x=11 x=6, 2x=12 x=6.5, 2x=13 x=7, 2x=14 Like st...
- by aspire750
Thu Sep 11, 2008 11:14 pm- Forum: Data Sufficiency
- Topic: value X
- Replies: 2
- Views: 1428
Re: DS problem
A data sufficiency question : Set S contains more than one element. Is the range of the set S larger than its mean? 1) Set S does not conatin positive elements 2) the median of set S is negative Can someone please explain ? Thanks in adv! Is the ans B? 1) Set S does not conatin positive elements- i...
- by aspire750
Sat Sep 06, 2008 7:00 am- Forum: Data Sufficiency
- Topic: DS problem
- Replies: 6
- Views: 2525
Re: it seems to be easy
If a and b are integers and a is not equal to b, is ab > 0? (1) a^b > 0 (2) a^b is a non-zero integer Is the ans C? Lets plug values Stm1. assume a=2, b=3, ab>0 but when a=2, b=-3 in this case ab<0 so, insufficient Stm2. a^b is non zero, means it could be negative or positive similarly it is insuff...
- by aspire750
Thu Sep 04, 2008 10:53 pm- Forum: Data Sufficiency
- Topic: it seems to be easy
- Replies: 2
- Views: 2180
Re: I hate getting this kind of stuff wrong
Lets us rewrite the stimuliricaototti wrote:a, b, c all are positive, is a/b > (a+c)/(b+c) ?
1. a > c
2. a > b
Answer - B
a(b+c)>b(a+c)
ab+ac>ab+bc
or, a>b which is the statement 2
Statement 2 is sufficient
Statement 1 is insufficient
- by aspire750
Thu Sep 04, 2008 10:32 pm- Forum: Data Sufficiency
- Topic: I hate getting this kind of stuff wrong
- Replies: 1
- Views: 1417
Re: GmatPrep?? (Slope)
Please Help... for ax+by+c=0 slope = -a/b Statement I & II are clearly insufficient when taken alone. Combining I & II x intercept = 2 y intercept = 3 slope = -2/3 Although the answer is correct but explanation is flawed. Stm1. the x-intercept of line K is 2 means it passes through (2,0) St...
- by aspire750
Wed Sep 03, 2008 10:23 pm- Forum: Data Sufficiency
- Topic: GmatPrep?? (Slope)
- Replies: 3
- Views: 1633
- by aspire750
Wed Sep 03, 2008 10:07 pm- Forum: Data Sufficiency
- Topic: GmatPrep2?? (range)
- Replies: 2
- Views: 1375
- by aspire750
Wed Sep 03, 2008 9:41 pm- Forum: Data Sufficiency
- Topic: GMAT PREP GEOMETRY
- Replies: 5
- Views: 1692
Re: error on gmat prep?
a certain group of car dealerships agreed to donate X dollars to a red cross chapter for each car sold during the 30 day period. What was the total amount that was expected to be donated? (1) a total of 500 cars were expected to be sold (2) 60 more cars were sold that expected, so that the total am...
- by aspire750
Thu Aug 14, 2008 4:09 am- Forum: Data Sufficiency
- Topic: error on gmat prep?
- Replies: 2
- Views: 3906
Re: What is the value of x+y?
Stm1. 2^3*3^2=72CappyAA wrote:If x and y are positive integers, what is the value of x+y?
(1) (2^x)(3^y) = 72
(2) (2^x)(2^y) = 32
Thanks,
Cappy
x+y=5 Sufficient
Stm2. 2^2*2^3=32
x+y=5 Sufficient
D
- by aspire750
Tue Aug 12, 2008 11:21 pm- Forum: Data Sufficiency
- Topic: What is the value of x+y?
- Replies: 3
- Views: 8402
The ans should be C
10x+2y=5Z or 5(x+y)
Stm1. y=10 sufficient to know x
Stm2. z=(x+y)=16 sufficient to know x
Hence D
- by aspire750
Tue Aug 12, 2008 11:15 pm- Forum: Data Sufficiency
- Topic: What is the value of x? (Mixing Problem)
- Replies: 4
- Views: 4360
Re: Quant review (OG) Prob
The q is : If xy>0, does (x-1)(y-1)=1 ? 1) x+y=xy 2) x=y Stem 1 is sufficient and i agree with that. How about stem 2 ? Amit xy-(x+y)+1=1 Stm1. x+y=xy so, the given eqn holds correct Sufficient Stm2. x=y, The eqn will be x^2-2x+1=1--> (x-1)^2=1 or y^2-2y+1=1--> (y-1)^2=1 Insufficient to satisfy the...
- by aspire750
Tue Aug 12, 2008 10:52 pm- Forum: Data Sufficiency
- Topic: Quant review (OG) Prob
- Replies: 6
- Views: 1814
Re: 724
724. The decision by one of the nation’s largest banks to admit to $3 billion in potential losses on foreign loans could mean less lending by commercial banks to developing countries and increasing the pressure on multigovernment lenders to supply the funds. (A) increasing the pressure (B) the incr...
- by aspire750
Fri Aug 08, 2008 8:15 am- Forum: Sentence Correction
- Topic: 724
- Replies: 1
- Views: 4421
The OA for question 1 is C (I arrived at A too and I cannot figure out why C is the answer) The OA for question 2 is A (don't know why) The reason is: Q1. Statement1. y=2x, suppose y=1, in this case x=1/2 plugging these values in the question stem can be 2*0.33=0.66 or -2*0.33=-0.66 so, no definite...
- by aspire750
Wed Aug 06, 2008 9:29 am- Forum: Data Sufficiency
- Topic: Questions from Princeton Review Adaptive test 4
- Replies: 8
- Views: 1657
Since a total of 150 combinations are there. It has to be
150=No. of combinations of chairs* no. of combinations of tables
No. of ways chairs can be arranged=5C2=10
Therefore, no. of ways tables can be arranged would be 15.
6C2=15. Hence, there has to be 6 tables.
- by aspire750
Wed Aug 06, 2008 8:18 am- Forum: Problem Solving
- Topic: Chairs
- Replies: 11
- Views: 3093