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# Data Sufficiency (DS)

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291
ER
 150 Hardest and easiest questions for DS   Tags:
Bunuel

9

39685

24 Aug 2017, 21:58

657
ER
 DS Question Directory by Topic and Difficulty   Tags: Coordinate Geometry
bb

0

186543

07 Mar 2012, 08:58

Topics

30
ER
 If n is an integer, is n positive?
jcmsolis2015

13

2785

01 Nov 2017, 19:41

32
ER
 If abcd is not equal to zero, is abcd <0 ?
samichange

10

2204

01 Nov 2017, 16:03

19
ER
 Hollywood starlets Ashlee and Britnee each has an entourage
RohitKalla

6

3774

01 Nov 2017, 08:24

2
ER
 How many of the 400 students in the 11th grade will take calculus?
Bunuel

7

953

01 Nov 2017, 03:48

14
ER
 If every member of set X {-14, -12, 17, 28, 41, Z} is
vjsharma25

13

7100

01 Nov 2017, 02:40

6
ER
 Is a < b? (1) |a – b| = b – a (2) a/b < 1
mahdwen

9

590

01 Nov 2017, 02:19

28
ER
 How many triangles can be formed using 8 points in a given p   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Combinations,  Geometry
CasperMonday

21

8431

01 Nov 2017, 02:11

1
ER
 If the average (arithmetic mean) exam score of Alice, Bob and Cindy is
MathRevolution

4

225

01 Nov 2017, 01:55

ER
 Is ab > 35? (1) -4 < a < 3 and -5< b<4. (2) a < 5 and b <7.
Bunuel

1

131

01 Nov 2017, 01:43

3
ER
 If a, b and c are positive integers and c is odd, are both a and b div
pran21

3

1017

01 Nov 2017, 01:23

1
ER
 If a and b are positive numbers, is a < c?
Bunuel

3

166

01 Nov 2017, 00:29

ER
 A child had 5 friends at her birthday party. The children opened a box
Bunuel

2

151

01 Nov 2017, 00:18

2
ER
 Is b > 4? (1) 2b^2 = 50 (2) 3b - 2 = -17
Bunuel

1

119

31 Oct 2017, 23:28

50
ER
 A drawer contains 8 socks, and 2 socks are selected at
Economist

8

16315

31 Oct 2017, 17:03

3
ER
 Does (x + y)² + (x – y)² = 170?
zahraf

4

1221

31 Oct 2017, 16:16

3
ER
 If m, x, and y are positive integers, what is the value of x
aeglorre

2

2051

31 Oct 2017, 16:13

4
ER
 If k is a positive integer and n=7.049*10^k, what is the val
GMATD11

2

4007

31 Oct 2017, 16:13

23
ER
 Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl
EgmatQuantExpert

11

4808

31 Oct 2017, 15:38

43
ER
 If b and c are constants for which the quadratic equation x^2+bx+c=0
broilerc

7

6920

31 Oct 2017, 12:38

8
ER
 If n >2 and n^4-5n^2+4 = 20h, Is h an integer ?
gary391

8

552

31 Oct 2017, 12:27

ER
 Is x an even integer? Assume n and p are integers.
Bunuel

3

190

31 Oct 2017, 12:23

ER
 Is there a route from A to C that passes through B and is more than 8
Bunuel

2

171

31 Oct 2017, 12:17

12
ER
 John buys only chocolates and cookies from the market. Was the total
chetan2u

6

928

31 Oct 2017, 12:11

1
ER
 How far is it from town A to town B? Town C is 12 miles east of town A
Bunuel

3

185

31 Oct 2017, 12:09

ER
 In triangle ABC, find z if AB = 5 and y = 40.
Bunuel

2

197

31 Oct 2017, 11:49

4
ER
 If the greatest common factor of positive integers A and B is 20, what
Bunuel

2

620

31 Oct 2017, 11:38

37
ER
 In a certain sequence, each term, starting with the 3rd term
mun23

13

10843

31 Oct 2017, 11:30

18
ER
 If m and n are both positive, what is the value of m*root(n)
gb82

10

6594

31 Oct 2017, 11:18

3
ER
 Samantha invests i1 dollars in bond X, which pays r1   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Percent and Interest Problems,  Source: Manhattan GMAT
nandini11

20

3673

31 Oct 2017, 09:57

6
ER
 If y is a positive integer, is (y^3 + 5)^2/4 an integer?
sasyaharry

2

194

31 Oct 2017, 09:28

39
ER
 Michael arranged all his books in a bookcase with 10 books on each she   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Word Problems,  Source: Official Guide
tonebeeze

37

9001

31 Oct 2017, 08:33

2
ER
 If production on line A increased 5% from 2006 to 2007, and if product
Bunuel

6

1270

31 Oct 2017, 07:39

14
ER
 Is (-y)/2 > y^2 ?
Bunuel

8

1620

31 Oct 2017, 07:00

1
ER
 Is m, which does not equal zero, a positive number?
Bunuel

3

698

31 Oct 2017, 05:51

2
ER
 If a and b are integers, what is the value of b ?
Gnpth

2

1111

31 Oct 2017, 05:44

2
ER
 Is 3x^2 - 2 > 0?
fattty

4

741

31 Oct 2017, 05:34

23
ER
 Is X between 0 and 1 ? (1) x^2 is less than x (2) x^3 is   Go to page: 1, 2 Tags: Difficulty: Sub-600 Level,  Inequalities,  Source: Official Guide
jscott319

22

8023

30 Oct 2017, 21:29

ER
 A country's population increased x% in 2011 and then by y% in 2012.

2

162

30 Oct 2017, 20:56

2
ER
 A worker is hired for 6 days. He is paid \$2 more for each day of work
Bunuel

2

175

30 Oct 2017, 19:50

 The price of a pair of earrings is x percent more than the price...

1

138

30 Oct 2017, 18:57

8
ER
 The infinite (serial) sequence a1, a2, …, an, … is such that a1 = x, a
Bunuel

8

2207

30 Oct 2017, 18:03

32
ER
 Is the radius of the circle greater than 3?
gdk800

9

3805

30 Oct 2017, 16:13

6
ER
 The vertices of a triangle are on points A(a,b), B(2,2)
kenguva

5

2206

30 Oct 2017, 16:10

20
ER
 If the vertices of a triangle have coordinates (x,1), (5,1),
noboru

7

3557

30 Oct 2017, 16:08

4
ER
 In the rectangular coordinate system above, if OB < BC then is the are
TARGET730

8

1450

30 Oct 2017, 16:00

3
ER
 What is the slope of line l which passes through the origin of a recta
Bunuel

3

1185

30 Oct 2017, 15:49

18
ER
 Lines a and b have different y-intercepts. When line a is
bhandariavi

15

5040

30 Oct 2017, 15:23

8
ER
 Two line l and k intersect at a point (4, 3). Is the product of their
PathFinder007

5

1514

30 Oct 2017, 15:18

41
ER
 Lines k and l intersect in the coordinate plane at point (3,   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Coordinate Geometry,  Source: Manhattan GMAT
supri1234

20

4545

30 Oct 2017, 15:11

4
ER
 In a rectangular coordinate system, are the points (x, y) and (w, z)
Bunuel

4

631

30 Oct 2017, 15:05

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