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# Data Sufficiency (DS)

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Announcements

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

9

39674

24 Aug 2017, 21:58

656
ER
 DS Question Directory by Topic and Difficulty   Tags: Coordinate Geometry
bb

0

186501

07 Mar 2012, 08:58

Topics

23
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

7782

11 Nov 2017, 12:59

ER
 If xy ≠ 0, what is the value of 1/x + 1/y ?
Bunuel

3

139

11 Nov 2017, 11:26

ER
 Was the average (arithmetic mean) weight of the package mailed at a
Bunuel

2

99

11 Nov 2017, 11:26

5
ER
 Is ABC a right triangle? AB = 5; AC = 4. (1) BC = 3 (2) AC = CD
Bunuel

4

188

11 Nov 2017, 11:12

ER
 If x ≠ y, is x + y = xy?
Bunuel

2

101

11 Nov 2017, 10:19

1
ER
 What is the value of the product xy?
Bunuel

1

71

11 Nov 2017, 09:44

ER
 At an auction, each of the bids on a certain clock after the first bid
Bunuel

1

80

11 Nov 2017, 09:39

ER
 If n is a positive integer, what is the value of n ?
Bunuel

1

80

11 Nov 2017, 09:35

3
ER
 Linda purchased 3 books at a book fair. What was the median price of
Bunuel

2

94

11 Nov 2017, 09:31

ER
 If R, S, and T are numbers on the number line, not necessarily in that
Bunuel

2

82

11 Nov 2017, 09:30

61
ER
 What is the value of x + y in the figure above?

7

8236

11 Nov 2017, 09:17

ER
 Is t greater than v ? (1) t is greater than 3. (2) v is less than 5.
Bunuel

1

76

11 Nov 2017, 08:54

ER
 A sequence of numbers a1, a2, a3, . . . is given by the rule an^2 = an
Bunuel

2

130

11 Nov 2017, 08:28

2
ER
 Did the price of energy rise last year? (1) If the price of energy ros
Bunuel

2

99

11 Nov 2017, 08:24

3
ER
 Is x/12 > y/40 ?
Bunuel

3

189

11 Nov 2017, 08:20

ER
 Plane X flies at r miles per hour from A to B. Plane Y flies at S mile
Bunuel

4

223

11 Nov 2017, 08:14

24
ER
 In each game of a certain tournament, a contestant either loses 3 poin
Bunuel

9

3372

11 Nov 2017, 08:05

ER
 If r = (x+y)/2 and s = (x-y)/2, what is the value of r + s?
Bunuel

1

69

11 Nov 2017, 07:55

4
ER
 Is 2x > 2y ?
Bunuel

6

943

11 Nov 2017, 07:53

7
ER
 What is the value of positive integer x?
Bunuel

9

821

11 Nov 2017, 07:52

76
ER
 If the ratio of the number of teachers to the number of

12

12429

11 Nov 2017, 07:50

2
ER
 Is 1/x greater than 1/y?
Bunuel

5

176

11 Nov 2017, 07:45

1
ER
 If the number of members in the club C is 100, what is the value of x?
sunny91

1

96

11 Nov 2017, 06:22

56
ER
 A company makes and sells two products, P and Q. The costs per unit of
Bunuel

11

6137

11 Nov 2017, 05:32

21
ER
 In a sequence of terms in which each term is three times the
mariyea

19

6815

11 Nov 2017, 05:05

11
ER
 If the vertices of a quadrilateral PQRS lie on the circumference of
joylive

7

4961

11 Nov 2017, 03:39

8
ER
 Is |x| = |y|? (1) x = -y (2) x^2 = y^2
HarveyKlaus

5

924

11 Nov 2017, 01:25

3
 Is x^2>x^3

3

164

11 Nov 2017, 01:01

64
ER
 A box contains 10 light bulbs, fewer than half of which are   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Probability
udaymathapati

23

13035

10 Nov 2017, 23:50

42
ER
 If h and k are both positive integers, are both roots of the equation
hubahuba

17

4625

10 Nov 2017, 23:24

67
ER
 What is x?   Go to page: 1, 2 Tags: Difficulty: 700-Level,  Absolute Values/Modulus,  Inequalities,  Source: Manhattan GMAT
rohitgoel15

24

17553

10 Nov 2017, 23:14

13
ER
 Many of the students at the International School speak
monirjewel

9

5397

10 Nov 2017, 22:47

6
ER
 In a taste test conducted for coffee brands X and Y, if each of the 1,
Bunuel

10

1239

10 Nov 2017, 21:26

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

22

7929

10 Nov 2017, 21:14

7
ER
 If x and n are integers is the sum of x and n less than zero
dvinoth86

10

6411

10 Nov 2017, 21:04

1
ER
 What is the probability that the sum of two dice will yield a 10 or lo
Henni

1

113

10 Nov 2017, 17:19

44
ER
 If x and y are positive integers, is x a prime number?
bekerman

11

5959

10 Nov 2017, 12:21

5
ER
 Is k² + k – 2 > 0?
Bunuel

8

1619

10 Nov 2017, 11:14

10
ER
 In order to play a certain game, 24 players must be split in
enigma123

17

5924

10 Nov 2017, 10:19

6
ER
 xz < 0? 1) |x+y| = |x| + |y| 2) |y+z| = |y| + |z|
MathRevolution

12

526

10 Nov 2017, 09:08

4
ER
 If the digit n is the thousandths digit in the decimal d = 0.75n9, wha
AbdurRakib

8

1020

10 Nov 2017, 09:03

3
ER
 What is the remainder of x^2 + y^2, when it is divided by 4?
MathRevolution

4

210

10 Nov 2017, 08:57

53
ER
 Eunice sold several cakes. If each cake sold for either   Go to page: 1, 2 Tags: Difficulty: 600-700 Level,  Arithmetic,  Word Problems,  Source: Official Guide
gmatpapa

24

11193

10 Nov 2017, 08:37

1
ER
 What is the value of xy ?
avohden

3

1159

10 Nov 2017, 07:45

7
ER
 If t#0, is r greater than zero?
Bunuel

7

4128

10 Nov 2017, 07:11

3
ER
 What is the value of z?
tissime

6

1583

10 Nov 2017, 07:00

7
ER
 Are at least 80 percent of the people in Country X
metallicafan

8

3446

10 Nov 2017, 07:00

3
ER
 What is the value of the greater of two numbers if one of the numbers
Bunuel

4

907

10 Nov 2017, 06:44

5
ER
 If x = y^2, what is the value of y – x? (1) x = 4 (2) x + y = 2
Bunuel

4

881

10 Nov 2017, 06:25

7
ER
 The arithmetic mean (average) of a set of 10 numbers is 10. Is the med
Bunuel

3

764

10 Nov 2017, 03:08

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