Search found 115 matches
- by Sunny22uk
Sun Sep 14, 2008 4:09 pm- Forum: Problem Solving
- Topic: LCM question
- Replies: 4
- Views: 1695
Re: gmatprep - business recovery plan
I think question is poorly worded. If we look at the option a) 200 of the companies did not indicate that they had business recovery plan that could mean 2 things-1) 200 companies had no recovery plan 2) 200 companies did not indicate that they had business recovery plan could also mean that 200 ou...
- by Sunny22uk
Sun Sep 14, 2008 4:06 pm- Forum: Data Sufficiency
- Topic: gmatprep - business recovery plan
- Replies: 4
- Views: 4505
Re: 4 DS questions to be solved
if lm+4l=2 what is the value of m ? 1) m<0 2) m^2+8m +12= 0 A) For m<0 and for lm+4l=2, there are 2 possible values for m i.e. -6,-2 Hence NOT SUFFICIENT B)the second is a quadratic equation, the 2 roots are -6,-2 Hence NOT SUFFICIENT C) Combining 1 and 2, we still have 2 values=-6, -2 Hence NOT SU...
- by Sunny22uk
Sun Sep 14, 2008 3:59 pm- Forum: Data Sufficiency
- Topic: 4 DS questions to be solved
- Replies: 9
- Views: 4008
Re: 4 DS questions to be solved
q. 1 q3 if n is a positive integer, what is the value of n ? 1) when n is divided by 3, the remainder is 2 2) when n ^2 is divided by 3, the remainder is 1 1) A cannot be sufficient because there can be an infinite number of integers which can be divided by 3 and the remainder will be 1 e.g. 5,8,11...
- by Sunny22uk
Sun Sep 14, 2008 3:54 pm- Forum: Data Sufficiency
- Topic: 4 DS questions to be solved
- Replies: 9
- Views: 4008
Re: 4 DS questions to be solved
q. 1 q2 in the xy plane, does the point (a,b) lie above the line x=y? 1) a=2 2) b= a +2 x=y is straight line which goes across 1st and 3rd quadrant and through the origin(since y=x) a) a=2, we don't know b, NOT SUFFICIENT b) b=a+2 is sufficient for all values of (a,b) and it will be above the line ...
- by Sunny22uk
Sun Sep 14, 2008 3:47 pm- Forum: Data Sufficiency
- Topic: 4 DS questions to be solved
- Replies: 9
- Views: 4008
Re: 4 DS questions to be solved
A) x is a multiple of 54 which can be rewritten as 18*3, hence 18 is a factor of xy^2 SUFFICIENTcharmaine wrote:q. 1
if x and y are nonzero integers, is 18 a factor of xy^2?
1) x is a multiple of 54
2) y is a multiple of 6
B) since y=6, y^2=36, 18 is a factor of 36, SUFFICIENT
Thus the answer is D
- by Sunny22uk
Sun Sep 14, 2008 3:36 pm- Forum: Data Sufficiency
- Topic: 4 DS questions to be solved
- Replies: 9
- Views: 4008
I still don't understand why you can't simplify the following equation. Am I mistaken in the belief that you can simplify all equations where there is the same variable on both sides. I understand that by setting b to 1 and 0 yields different results. When simplifying equations, should I always ass...
- by Sunny22uk
Sun Sep 14, 2008 1:27 pm- Forum: Problem Solving
- Topic: hard PS multi choice
- Replies: 17
- Views: 4300
- by Sunny22uk
Sun Sep 14, 2008 1:15 pm- Forum: Problem Solving
- Topic: triangle area
- Replies: 4
- Views: 1289
Re: tough one!
Q14: (Problematic, Do Not Calculate; Only Know the Method!) How many seconds will it take for a car that is traveling at a constant rate of 45 miles per hour to travel a distance of 22 yards? (1 mile = 1,160 yards) A. 8 B. 9 C. 10 D. 11 E. 12 This is also a tough one. I wonder how to choose the bes...
- by Sunny22uk
Sun Sep 14, 2008 1:09 pm- Forum: Problem Solving
- Topic: tough one!
- Replies: 6
- Views: 7730
- by Sunny22uk
Sun Sep 14, 2008 12:36 pm- Forum: Problem Solving
- Topic: tough gmat prep problem
- Replies: 3
- Views: 1513
Re: H(n)
For every positive even integer n, the function h(n) is defined to be the product of all even integers from 2 to n, inclusive. If p is the smallest prime factor h(100)+1, then p is a) between 2 and 10 b) between 10 and 20 c) between 20 and 30 d) between 30 and 40 3) greater than 40. Please help! Pl...
- by Sunny22uk
Sat Sep 13, 2008 6:31 pm- Forum: Problem Solving
- Topic: H(n)
- Replies: 1
- Views: 1296
Re: Number
Which of the following procedures is always equivalent to adding 5 given numbers and then dividing the sum by 5 ? I. Multiplying the 5 numbers and then finding the 5th root of the product. II. Adding the 5 numbers, doubling the sum, and then moving the decimal point one place to the left. III. Orde...
- by Sunny22uk
Sat Sep 13, 2008 6:20 pm- Forum: Problem Solving
- Topic: Number
- Replies: 8
- Views: 1765
Re: GMATPrep
As per the questionf(x)=f(1-x)smithpa2 wrote:Can someone address this question?
Substitute 1-x on for x in all the answer choices.
The answer should be the same is f(x)
f(x)=(x)^2(1-x)^2
f(1-x)=(1-x)^2[(1-(1-x)]^2
f(1-x)=(x)^2(1-x)^2
OA D
- by Sunny22uk
Sat Sep 13, 2008 6:15 pm- Forum: Problem Solving
- Topic: GMATPrep
- Replies: 5
- Views: 1714
and thanks for pointing the flaw in my example, I was high on crown royal at that time...lolLSB wrote:BTW - I just noticed that my original says Ans E. It is supposed to say Ans A ("None"). This answer is supported by my solution above.
Sorry for the confusion
- by Sunny22uk
Sat Sep 13, 2008 5:42 pm- Forum: Problem Solving
- Topic: prep test 1
- Replies: 11
- Views: 1674
Re: Inequalities
Which of the following inequalities is equivalent to –2 < x < 4 ? (A) | x – 2 | < 4 (B) | x – 1 | < 3 (C) | x + 1 | < 3 (D) | x + 2 | < 4 (E) None of the above If you quickly scan through the answer choices only B and C can give you the answer 2 and 4. lets take B Positive case:- x-1<3 i.e. x<4 (1)...
- by Sunny22uk
Sat Sep 13, 2008 5:37 pm- Forum: Problem Solving
- Topic: Inequalities
- Replies: 1
- Views: 1130