Search found 44 matches
There is a typo. Correct answer is 'C' Statement 1 - zm=xk Therefore, xn^2+xk^2=ynm+xk^2 xn^2+xk^2-xk^2=ynm xn^2=ynm xn=ym (I arrived at this answer but I don't understand how to use the answer to decide on the validity of the statement. Does xn=xn is considered sufficient bcoz it has to be the same...
- by leumas
Sat Jul 21, 2012 5:40 am- Forum: Data Sufficiency
- Topic: OG - 2nd Edition - Question 106
- Replies: 3
- Views: 1504
How much greater is the square of the sum of three different positive integers than the sum of their squares? (1) The sum of the products of all possible pairs of two different integers out of the original set of three is 61. (2) The largest of the three integers, 7, is equal to the sum of the two ...
- by leumas
Mon Apr 02, 2012 10:53 am- Forum: Data Sufficiency
- Topic: MGMAT-DS
- Replies: 4
- Views: 1117
How much greater is the square of the sum of three different positive integers than the sum of their squares? (1) The sum of the products of all possible pairs of two different integers out of the original set of three is 61. (2) The largest of the three integers, 7, is equal to the sum of the two ...
- by leumas
Thu Mar 01, 2012 7:41 am- Forum: Data Sufficiency
- Topic: MGMAT-DS
- Replies: 4
- Views: 1117
MGMAT-DS
How much greater is the square of the sum of three different positive integers than the sum of their squares? (1) The sum of the products of all possible pairs of two different integers out of the original set of three is 61. (2) The largest of the three integers, 7, is equal to the sum of the two s...
- by leumas
Thu Mar 01, 2012 7:26 am- Forum: Data Sufficiency
- Topic: MGMAT-DS
- Replies: 4
- Views: 1117
In this condition if i substitute the values of k in the finally derived equation of yours "y/x = (10 - k)/(k - 20) and we know y > x or y/x > 0 I am getting for 15 the value is 1 which is acceptable right???? y/x>0 and it is 1??? In this method both C & D are right? Am i right? If x, y, a...
- by leumas
Thu Jan 05, 2012 3:08 am- Forum: Problem Solving
- Topic: Value of k (OG12 - PS-148)
- Replies: 8
- Views: 1813
In the rectangular coordinate system to the left, the line y = -x is the perpendicular bisector of segment RS (not shown) and the y-axis is the perpendicular bisector of segment ST (not shown). If the coordinates of point R are (-3, 1), what are the coordinates of point T ? A (-1, 3) B (-1, -3) C (...
- by leumas
Mon Dec 19, 2011 11:34 pm- Forum: Problem Solving
- Topic: Grockit tough problem
- Replies: 18
- Views: 10969
The poetic expressiveness and creativity of Japanese women poets of the Manyoshu era is generally regarded as a manifestation of the freedom and relatively high political and economic status women of that era enjoyed. During the Heian period (A.D. 794-1185) which followed, Japanese women became inc...
- by leumas
Tue Nov 15, 2011 6:29 am- Forum: Reading Comprehension
- Topic: Reading Comprehension ..........
- Replies: 44
- Views: 28225
Percents
If x percent of y is equal to y percent less than z, what is y in terms of x and z?
(A) (100(x+z))/x (8) 100x/(x+z) (C) 100{x+z)/(x-z) (O) 100z / (x-z) (E) 100z /(x+z)
OA not given. Please provide solution.
- by leumas
Thu Oct 13, 2011 12:29 am- Forum: Problem Solving
- Topic: Percents
- Replies: 2
- Views: 957
Now, with option B, the intent of showing WHY the relationship is unclear is lost as we have two independent clauses separated by a semicolon... As a reader I do not think we come to know that the second independent clause is a reason for the first clause... the sentence doesn't actually explain wh...
- by leumas
Sat Oct 08, 2011 6:00 am- Forum: Sentence Correction
- Topic: Comma Splice
- Replies: 49
- Views: 24905
If the range of the set containing the numbers x, y, and z is 8, what is the value of the smallest number in the set? (1) The average of the set containing the numbers x, y, z, and 8 is 12.5. (2) The mean and the median of the set containing the numbers x, y, and z are equal. Another way: q: What i...
- by leumas
Mon Oct 03, 2011 7:42 am- Forum: Data Sufficiency
- Topic: Challenge-statistics
- Replies: 45
- Views: 19806
Odd & Even
If p, q, and r are integers, is pq + r even?
(1) p + r is even.
(2) q + r is odd.
OA says Ebut I feel correct answer is C
Please clarify.
- by leumas
Sat Oct 01, 2011 9:54 am- Forum: Data Sufficiency
- Topic: Odd & Even
- Replies: 2
- Views: 974
Thanks mitch. Is there a simple solution for the below OG 12 DS 161 Q, which is little similar to the one above: Beginning in January of last year, Carl made deposits of $120 into his account on the 15th of each month for several consecutive months and then made withdrawals of $50 from the account o...
- by leumas
Tue Sep 27, 2011 9:46 am- Forum: Data Sufficiency
- Topic: The Average Daily Balance
- Replies: 21
- Views: 14825
On Jane's credit card account, the average daily balance for 30-day billing cycle is the average (arithmetic mean) of the daily balances at the end of each of the 30 days. At the beginning of a certain 30-day billing cycle, Jane's credit card account had a balance of $600. Jane made a payment of $3...
- by leumas
Tue Sep 27, 2011 7:52 am- Forum: Data Sufficiency
- Topic: The Average Daily Balance
- Replies: 21
- Views: 14825
Factors Problem-2
If k, m, and t are positive integers and (k/6)+ (m/4) = (t/12),
do t and 12 have a common factor greater than 1 ?
(1) k is a multiple of 3.
(2) m is a multiple of 6.
- by leumas
Sun Sep 25, 2011 4:43 am- Forum: Data Sufficiency
- Topic: Factors Problem-2
- Replies: 1
- Views: 939
Factors Problem
If k, m, and t are positive integers and (k/6)+ (m/4) = (t/12),
do t and 12 have a common factor greater than 1 ?
(1) k is a multiple of 3.
(2) m is a multiple of 4.
- by leumas
Sun Sep 25, 2011 4:41 am- Forum: Data Sufficiency
- Topic: Factors Problem
- Replies: 4
- Views: 1380