# GMAT Data Sufficiency DiscussionsGMAT & GRE Prep Report

The GMAT and Related Discussions section is very fragmented in terms of the information available at one's disposal. There are one of reply threads and several other redundant threads that have masked the more important ones.
This is an attempt to make the best of explanations, reasonings, qu...
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@rahul.ubercul I feel it's just a data collection technique...thanks anyways...
@mazaasudip Correct answer is Option E
@abhinavchitre Correct answer is option D
d.For a convention,a hotel charges a daily room rate of \$120 for 1 person and x dollars for each additional person.what is the charge of each additional person
1.The daily cost per person for 4 people sharing the cost of a room equally is \$45
2.The daily cost per person for 2 people sharing...
@Mission_10 i think ur approach for 2. question ie wieght of John is wrong coz the eqn from 1st stmt shud be T+M = J
so i dont knw how u computed further..
e1 im looking for a correct answer n explaination for same...!!!
for the quest of dist of A and B.. dey hv nt mentioned from which...
Is the measure of one of the interior angles of quadrilateral ABCD equal to 60 degrees?
(1)Two of the interior angles of ABCD are right angles.
(2)The degree measure of angle ABC is twice the degree measure of angle BCD.
@amit-sharma28 I think the DS in CATS of past years were very good ........I find DS in GMAT a little easier than CAT standards , I am not sure but if u get the study material of DS when CAT was paper based (around 2004 onwards) u can get a good amt of practice .........also u can find zillions o...
Dear Puys, Could you please guide me to to the correct study material for Data Sufficiency section of GMAT. I will be grateful to you. I have searched the forum for the same info, but could not find any. On Flipkart there are some books from Veritas publication, but I doubt how helpful would th...
In a DS question if as per Statement 1 X = 3 and as per Statement 2 the value of X comes out to be 4, can we say each statement alone is sufficient or are we supposed to choose both together cannot be used to ans.
@mbaQuest12 Hi, A is not the answer for sure. I would approach the problem like this. Sum of interior angles of a quardrilateral is 360. if two are 90, then sum of remaining two is 180. now taking option B, it says angle ABC is twice the measure of angle BCD.Look into the rough diagram i have att...
If y>=0, what is the value of x?
(1) |x-3| >=y
(2) |x-3| <= -y
Ans = B. Please provide/explain the solution.
Is the measure of one of the interior angles of quadrilateral ABCD equal to 60 degrees?
(1) Two of the interior angles of ABCD are right angles.
(2) The degree measure of angle ABC is twice the degree measure of angles ABCD.
I worked out the answer as A, but turns out the correct answer ...
@[436816:Pushpayan]: Hi.. well, can you post some more questions where you think solution is not clear as per OG's explanation. All puys would have a look into it and we can come to a common approach for this. Sounds good ?
@[577265:deepdutta2402] : Hi I understand whatever you have mentioned and whatever OG has mentioned. My only point was because, i have seen in a lot of DS questions, they mention "since this is not stated it cannot be assumed". that is the reason i was confused. I have actually got quite a few DS...
Dude, its obvious that they mean 30 days, and OG's reasoning is justified.. Try to analyze the question like this.
We need the total amount which will be given to red cross charity i.e. we need the value of "nx" , where 'n' total number of cars to be sold in 30 days of time.
From statemen...
Hi All, this is regarding a DS question in the GMAT OG 11th edition. The question goes like this. "A Certain group of car dealerships agreed to donate 'x' dollars to a red cross chapterfor each car sold during a 30 day period. what was the total amount that was expected to be donated. (1) A ...
87. Is the number of seconds required to travel d1 feet atr1 feet per second greater than the number of secondsrequired to travel d2 feet at r2 feet per second?(1) d1 is 30 greater than d2.(2) r1 is 30 greater than r2.
Can any one please clear my doubt regarding why both statements together ca...
Folks - just wanted to give everybody here a heads-up - Once we move to the new forum, I will be closing this thread down. It's anyway gotten way too long.
Once we move to the new section, what I'd like you to do is create a thread for each problem that you want to discuss. The title should ...
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Oops ! I misunderstood the question. I thought it was odd int raised to the power x. It is clear now.
why can't x be zero apart from even ? any odd number raised to the power zero is 1 which is an interger greater than zero. I think x is given as an interger and not only positive integer. if you work with x = 0 , statement 1 is not sufficient ?
Question 5: Data Sufficiency : Is y = 3?
(1) ** (y - 3)(x - 4) = 0
(2) ** (x - 4) = 0
For q1 , the answer should be (e )
x,3, 1, 12, 8
Statement 1--->if x>6 , then median of say 7,3,1,12,8 is 7 and average is 6.2 so median > average however for a large value for x say 40 , median =8 and average of 5 nos x > median of the 5 numbers possible when x=9 or more median would be ...
please provide the solutions ASAP for the attached questions....
Thanks27942
i have an inclination towards A as well. If we equate and cross multiply...
Then, for all situations,
((X^2+1)+1) > X^2
Ought to be true right?
Now, the question is...Do we substitute first and then use the condition of do we use the condition and then substitute. Is there any rule fo...
Try two values x = -1 and x = 1 and see if you get only one answer with statement one alone?
(x^2 + 1 )/x = -2 (when x = -1) which is LESS THAN y (which is equal to x)
(x^2 + 1)/x = 2 (when x = 1 ) which is GREATER THAN y(which is equal to x)
So we cant conclusively say with only 1st s...
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They also gave C but I did not got that. According to me its A.
Because if we consider x=y, then we will have inequality as ((x^2 + 1)/x) > x
I know that at this point we are not knowing sign of x so we can directly cross multiply by x. But if we consider both conditions i.e. x<0 & x>0, the...
will go with C
if x is not equal to 0, is ((x^2 + 1)/x) > y?
1. x=y
2. y>0
Thanks for correction
Hi ps25,
(2.25^2)afkp = dgjm
Now 2.25^2 = (9/4)^2 = 9 ^2/4^2 = 3*3*3*3/2*2*2*2
Therefore dgjm/afkp = 3*3*3*3/2*2*2*2
So, all these alphabets will correspond to either 3 or 2.
Therefore, II is sufficient.
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a b c d
e f g h
i j k l
m n o p
fgjk = ?
1) bcehilno = 35^4
= (5*7)^5
so (b*c), (e*h), (i*l), (n*o) = 35
e * h = 7*5 or 5*7 so f*g = 2*3 or 3*2
i * l = 7*5 or 5*7 so j*k = 2*3 or 3*2
Sufficient( (3*2)^2 )
2) (2.25^2)afkp = dgjm
5...
Nice question !!!
a b c d
e f g h
i j k l
m n o p
In the grid above, the variables a through p are each equal to 2, 3, 5, or 7, with exactly one occurrence of each value in any row and in any column. What is the value of fgjk?
(1) bcehilno = 35^4
(2) (2.25^2)afkp = dgjm
PS...
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In the grid above, the variables a through p are each equal to 2, 3, 5, or 7, with exactly one occurrence of each value in any row and in any column. What is the value of fgjk?
(1) bcehilno = 354
If you take combination of 15 and 30 it will still give u LCM of 30, you get reminder 0. so statement 2 is also not sufficent. Please come up with better explaination.
Happy to help, please bring tougher questions of 700+ levels