Yea Answer is B Read the question carefully. It was asked morning session ONLY. Using statement B 7/8 didi attend afetr noon sesion .remaining 1/8 did not attend after noon session. So they attended morning session only.
Yea Answer is B Read the question carefully. It was asked morning session ONLY. Using statement B 7/8 didi attend afetr noon sesion .remaining 1/8 did not attend after noon session. So they attended morning session only.
so assuming 'x' as total members....morning session=x/8....still we dont get a integer number..jst a ratio
Hi All, A friend lent me a torn, tatterred Kaplan 800. Just my good luck that it has 2 pages missing 😃 and very important ones too! Can someone who's got the book, please post the following data sufficiency problems from Kaplan 800? Pg 373 --> Q.4 and Q.5 Pg 377 --> Q.8 and Q.9 I am sure others on this forum (not specifically suffering from the problem I do) will also prefer having a crack at 4 good Data suff. questions! Many thanks. Regards, - TTB
I am sorry..small modification in question 1. Is Sqrt = 3-x
A) x is not equal to 3 B) x*(MOD x)
Hi mohanraaz
my analysis would be like this: We have to answer in yes or no!! see option A": This says x!=3. But it give no info on the sign of x.Hence insufficient. See option B: x is -ve. Hence +or- (x-3)=3-x substitute -x + or- (-3-x)=+or-(x+3) Hence they are not equal
Hi all, Does any one have extra set of questions for DS as soft copy. If there are no copy right issues please post on this forum, else respond to this post, I will send you a PM. This is a sincere request!!! Please respond.:)
Hi All, Note: I had posted a similar question earlier. Please note however that the questions in this attachment are different from the earlier ones. Attached are some of the questions from GMATPrep that I got wrong. The options marked with the bold black dot in the attachment are mine and are the wrong answers. The options marked by a square blue frame are correct as these are the correct answers marked by the software. However the software does not explain why a particular choice is correct and others are wrong. I will be very grateful if some of you can help justify why the correct choice is actually correct! Many thanks. - TheToastedBread
Ans is C. Am i correct? From (1) we can infer y and z have same sign. Similarly from (2) x and y have same signs. So combining both x, y, z have same sign. So x(y+z) is greater than 0.
Is xy > x2y2? (1) 14x2 = 3 (2) y2 = 1 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient
Friends, Attached is a new set of DS questions from the official GMATPrep! The options marked with the bold black dot in the attachment are mine and are the wrong answers. The options marked by a square blue frame are correct as these are the correct answers marked by the software. However the software does not explain why a particular choice is correct and others are wrong. I will be very grateful if some of you can help justify why the correct choice is actually correct!
Friends, Attached is a new set of DS questions from the official GMATPrep! The options marked with the bold black dot in the attachment are mine and are the wrong answers. The options marked by a square blue frame are correct as these are the correct answers marked by the software. However the software does not explain why a particular choice is correct and others are wrong. I will be very grateful if some of you can help justify why the correct choice is actually correct!
Many thanks.
- TheToastedBread
Q5 Answer is C from statment 2 either n and p both are + or both -ve. From statement 1 n+1>0 n cannot be -ve. so 0 or above. From both to gether u can say both n and p are +ve.
Is xy > x2y2? (1) 14x2 = 3 (2) y2 = 1 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient
u cannot answer the question using either statement alone, that's for sure..if u use both 1&2,
y can either be +1 or -1........similarly, x can either be +sqrt(3/14) or -sqrt(3/14)...
when x=sqrt(3/14), y=1
xy > x2y2
when x=sqrt(3/14), y=-1 x2y2>xy
when x=-sqrt(3/14), y=1 x2y2>xy
when x=-sqrt(3/14), y=-1 xy>x2y2.. hence, in my opinion, answer is E.
Friends, Attached is a new set of DS questions from the official GMATPrep! The options marked with the bold black dot in the attachment are mine and are the wrong answers. The options marked by a square blue frame are correct as these are the correct answers marked by the software. However the software does not explain why a particular choice is correct and others are wrong. I will be very grateful if some of you can help justify why the correct choice is actually correct!
Many thanks.
- TheToastedBread
FIRST SET
1. option 1 does not give us any clue. in option 2, either both n,p>0 or both n,pusing both options together, n>-1 and np>0, we know n is +ve..hence, p shud also be +ve.. hence, option C.
2. using option1, 12u = 8y+12 hence, y = (12u-12)/8 = /8 in which case, no definite answer using option2, x=12z+12 = 12(1+z)...hence, we know FOR SURE the gcd is 12 in this case since 1+z is an integer...thus, answer is B.
3. i dunno....even i wud hv marked E..
4. the answer is B because there is only one combination that satisfies the price to be 130.... 23*2+21*4....try all other possible (23cents, 21cents) to see if u get a sum of 130 anywher (0,1), (0,2), (2,2), (4,4)....etc..
Friends, Attached is a new set of DS questions from the official GMATPrep! The options marked with the bold black dot in the attachment are mine and are the wrong answers. The options marked by a square blue frame are correct as these are the correct answers marked by the software. However the software does not explain why a particular choice is correct and others are wrong. I will be very grateful if some of you can help justify why the correct choice is actually correct!
Many thanks.
- TheToastedBread
1. AB=OC=OB=radius in triangle BOC, let OBC=OCB=x degrees hence, BOC=180-2x in triangle ABO, let BAO=BOA=x degrees
using st.1, COD=60, hence, BOC+BOA=120 degrees hence, 180-2x+x=120 hence, x=60... st.1 is sufficient using st.2, BCO=40..hence, BAO=40 st.2 is also sufficient... answer is D.
2. i dunno man :(
3. using st.1, the only option that satisfies 530 miles is he drove the x miles in 7 hrs and remaining in 3 hrs...
hence, st.1 is sufficient
using st.2, u do not know hw much time he took to cover the remaining distance..he cud take 6 hrs for the first part and 2 hrs for the remaining, or 17 hrs for the first and 13 for the second..so on.. so answer is A.
Currently doing terrible in it!!!
??:. Please consider this as an sos!!!!
