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# Data Sufficiency (DS)

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Announcements

286
ER
 150 Hardest and easiest questions for DS   Tags:
Bunuel

9

38265

24 Aug 2017, 21:58

642
ER
 DS Question Directory by Topic and Difficulty   Tags: Coordinate Geometry
bb

0

182110

07 Mar 2012, 08:58

Topics

39
ER
 If x is an integer, is 9^x + 9^{-x} = b ?   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Algebra,  Exponents/Powers,  Source: Official Guide
Bunuel

21

12383

16 Jul 2017, 14:46

156
ER
 At least 100 students at a certain high school study japanes   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Overlapping Sets,  Source: GMAT Prep
amitgovin

21

28425

14 Oct 2017, 18:38

88
ER
 The point A, B, C, and D are on the number line, not necessa   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Geometry,  Source: GMAT Prep
ronybtl

21

31978

18 Jun 2017, 15:10

48
ER
 How much time did it take a certain car to travel 400   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Distance/Rate Problems,  Source: GMAT Prep
DSGB

21

11178

08 Feb 2017, 11:21

47
ER
 Is x^2*y^4 an integer divisible by 9 ?
seekmba

21

9634

31 May 2017, 07:32

29
ER
 If n and t are positive integers, is n a factor of t ?
TOUGH GUY

21

7766

06 Sep 2016, 23:59

22
ER
 Sequence S consists of 24 nonzero integers. If each term in   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Sequences,  Source: Kaplan,  Source: Princeton Review
zisis

21

7610

10 Oct 2017, 10:19

67
ER
 In the xy coordinate plane, line L and line K intersect at   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Coordinate Geometry
LM

21

10169

15 Feb 2017, 01:34

24
ER
 Is |x – 3| < 7 ? (1) x > 0 (2) x < 10   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Absolute Values/Modules,  Inequalities
agnok

21

3142

03 Feb 2017, 03:16

24
ER
 When 55 is divided by 3x the remainder is 2x. What is the value of x?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Number Properties,  Remainders,  Source: Veritas Prep
Bunuel

21

3091

17 Oct 2016, 16:11

61
ER
 Two positive integers a and b are divisible by 5, which is their   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Number Properties,  Source: e-GMAT
EgmatQuantExpert

21

8770

19 Apr 2017, 10:06

71
ER
 Lines n and p lie in the xy plane. Is the slope of the line   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Coordinate Geometry,  Source: GMAT Prep
amansingla4

21

22987

31 May 2013, 03:16

16
ER
 Is |x^2 + y^2| > |x^2 - y^2|?
makhija1

21

3795

24 Sep 2015, 01:53

117
ER
 If p and n are positive integers and p > n, what is the   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Remainders
BANON

21

27952

27 Sep 2017, 08:33

74
ER
 A college admissions committee will grant a certain number   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Combinations,  Source: Manhattan GMAT
nverma

21

10441

03 Jul 2017, 01:33

107
ER
 If A
yezz

21

12047

07 Feb 2017, 21:08

68
ER
 If n is a positive integer, is n^2 - 1 divisible by 24?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Divisibility/Multiples/Factors,  Number Properties
kunalbh19

21

16605

12 Oct 2017, 21:17

68
ER
 If u(u+v) <> 0 and u > 0 is 1/(u + v) < 1/u + v ?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Algebra,  Inequalities,  Source: GMAT Prep QP1
PrashantPonde

21

8642

01 Jul 2017, 02:49

97
ER
 In a certain business, production index p is directly proportional to   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Word Problems,  Source: Official Guide
Superhuman

21

16071

28 Sep 2017, 04:38

72
ER
 Of the four numbers represented on the number line above, is   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Coordinate Geometry,  Source: Official Guide
devinawilliam83

21

11839

03 Mar 2017, 01:44

33
ER
 If m, r, x and y are positive, the ratio of m to r equal   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Fractions/Ratios/Decimals,  Source: GMAT Prep
LM

21

14633

22 Dec 2016, 00:00

37
ER
 When positive integer n is divided by 3, the remainder is 2   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Remainders,  Source: GMAT Prep
priyankur_saha@ml.com

21

21683

17 Nov 2011, 20:30

11
ER
 If 8x > 4 + 6x, what is the value of the integer x? (1) 6   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Inequalities,  Source: Manhattan GMAT
heyholetsgo

21

7721

10 Oct 2017, 11:10

33
ER
 If n is a positive integer, is n^3 n divisible by 4 ?
Baten80

21

6407

19 Jan 2017, 00:05

66
ER
 |x|=|2y|, what is the value of x-2y?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Absolute Values/Modules,  Inequalities,  Source: Manhattan GMAT
kashishh

21

12833

27 Mar 2017, 12:25

25
 When integer A divide by 79 remainder is X and when integer B divided
Harley1980

21

2121

26 Aug 2015, 07:46

39
ER
 Juan bought some paperback books that cost \$8 each and some   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Word Problems
neeraj.kaushal

21

9071

29 Aug 2017, 23:43

42
ER
 A list contains n distinct integers. Are all n integers cons   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Statistics and Sets Problems,  Source: Manhattan GMAT
UdaySJha

21

9891

02 Feb 2017, 18:33

13
ER
 Is x*|y| > y^2?
russ9

21

2471

19 Jan 2017, 16:16

17
ER
 In the figure shown, the circle has center O and radius 50   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Coordinate Geometry
ajit257

21

12207

21 Aug 2017, 22:08

30
ER
 If x^2 + 5y = 49. Is y an integer?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Number Properties,  Source: Kaplan
tejal777

21

4306

07 Oct 2016, 07:59

165
ER
 In the xy-plane, what is the y-intercept of line l?   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Coordinate Geometry,  Source: GMAT Prep
testprep2010

21

51603

13 Sep 2017, 06:09

30
ER
 If y>=0, What is the value of x? (1) |x-3|>=y (2) |x-3|<=-y   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Absolute Values/Modules,  Inequalities,  Source: GMAT Prep
ugimba

21

10235

18 Oct 2016, 03:32

49
ER
 Pat bought 5 pounds of apples. How many pounds of pears   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Word Problems,  Source: GMAT Prep
r019h

21

18917

06 Jul 2017, 16:53

75
ER
 If xy 0, is x > y? (1) 4x = 3y (2) |y - x| = x - y   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Absolute Values/Modules,  Inequalities
Economist

21

7853

22 Sep 2017, 19:15

8
ER
 For nonzero integers M and N, is M/N > (MN)^4?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Inequalities
Yalephd

21

2862

09 Jan 2017, 08:17

16
ER
 If the integers a and n are greater than 1 and the product   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Divisibility/Multiples/Factors,  Source: GMAT Prep
dominion

21

4306

14 May 2016, 11:03

70
ER
 If x and y are positive, is x < y?   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Inequalities,  Source: GMAT Prep EP 2
Lettherebelight

21

8818

09 Apr 2017, 22:08

41
ER
 For all numbers t, let //t// be defined as the greatest   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Functions and Custom Characters,  Number Properties
martie11

20

7478

07 Aug 2017, 10:21

53
ER
 If n is a positive integer, is (1/10)^n < 0.01?   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Exponents/Powers,  Inequalities,  Source: Official Guide
tkaelle

20

15150

21 Jun 2017, 13:57

18
ER
 If p1 and p2 are the populations and r1 and r2 are
MA

20

8444

18 Jul 2016, 05:19

22
ER
 For nonnegative integers x and y, what is the remainder when   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Remainders,  Source: Veritas Prep
JJ2014

20

3755

06 Mar 2017, 18:07

55
ER
 If a, b, c, d and e are integers and p=2^a3^b and q=2^c3   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Number Properties,  Source: Manhattan GMAT
enigma123

20

10402

21 Sep 2017, 20:35

44
ER
 In isosceles triangle RST what is the measure of angle R?   Go to page: 1, 2 Tags: Difficulty: Sub-600 Level,  Geometry,  Source: GMAT Prep
gmatgg

20

35893

18 Jun 2017, 01:35

62
ER
 If n is a positive integer, is the value of b - a at least twice the   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Algebra,  Exponents/Powers,  Source: Official Guide

20

9957

13 Sep 2017, 19:43

22
ER
 If x and y are integers and 2 < x < y, does y = 16 ?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Divisibility/Multiples/Factors,  Source: Veritas Prep
Archit143

20

4619

18 Aug 2017, 18:10

27
ER
 What is the absolute difference between the cubes of two   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Algebra,  Arithmetic,  Exponents/Powers,  Source: Manhattan GMAT
Smita04

20

4113

21 Jan 2017, 08:03

19
ER
 Is x+1 a factor of 12?   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Divisibility/Multiples/Factors
agnok

20

3976

08 Jun 2017, 20:28

9
ER
 In a certain sequence the difference between the (N-1)th   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Sequences
bz9

20

6249

09 Feb 2016, 05:46

70
 A clothing store's revenue last May was 6 percent less than   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Percent and Interest Problems,  Source: GMAT Prep QP1
mun23

20

9263

01 Jul 2017, 01:08

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