Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,792

by: bb

29 Aug 2025, 13:27

ER

The total number of active members in a college fraternity is 25/2 per

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

25 Aug 2025, 22:00

3

528

26 Aug 2025, 20:08

ER

Committee X and Committee Y , which have no common members

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

sunland

16 Mar 2012, 01:00

92

14

24,617

26 Aug 2025, 20:02

ER

If a1, a2, a3, ..., an, ... is a sequence such that an = 2n

505-555 (Easy) | Sequences

505-555 (Easy) | Sequences hide tags

eybrj2

28 Mar 2012, 01:57

46

9

22,210

26 Aug 2025, 10:11

ER

If r and s are nonzero integers, is r/s an integer ?

505-555 (Easy) | Algebra, Number Properties

505-555 (Easy) | Algebra, Number Properties hide tags

Bunuel

03 Oct 2018, 03:58

58

4

15,961

23 Aug 2025, 10:15

ER

How many dolls does Josephine currently have?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

20 Aug 2025, 22:00

4

2

374

21 Aug 2025, 20:52

ER

At a particular university with 200 students 30% only receive loans an

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

24 Jan 2017, 09:52

7

2

2,553

21 Aug 2025, 09:16

ER -1

Jason can drive from his home to his office by one of two possible

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

29 Jul 2025, 22:00

1

3

712

by: ishanjain126

21 Aug 2025, 02:51

ER

A certain salesman earns a flat payment of $12 per sale on sales up to

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

05 Aug 2025, 22:00

4

5

686

21 Aug 2025, 01:11

ER

Of the 800 sweaters in a certain store, 150 are red. How

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

jairus

14 Jun 2023, 16:40

129

17

49,874

19 Aug 2025, 21:42

ER

A group of 50 people, all of who voted in the last Presidential electi

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

01 Feb 2021, 13:40

2

1,503

19 Aug 2025, 02:01

ER

149 people were aboard Flight 222 when it arrived at Los Angeles from

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

17 Aug 2025, 22:00

3

2

504

18 Aug 2025, 10:35

ER

Each of the coins in a collection is distinct and is either silver or

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

Bunuel

27 Dec 2015, 08:54

38

11

13,169

18 Aug 2025, 00:29

ER

Is |a| = |b| ? (1) a + b = 0 (2) a - b = 2

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

Bunuel

05 Jan 2023, 02:30

5

3

1,768

by: AntonEfimov

17 Aug 2025, 05:55

ER

What is the ratio of the amount, by weight, of Metal A to Metal B in A

505-555 (Easy) | Fractions and Ratios, Mixture Problems

505-555 (Easy) | Fractions and Ratios, Mixture Problems hide tags

guddo

30 May 2024, 11:02

24

12

6,618

16 Aug 2025, 01:35

ER

What is the number of 360-degree rotations that a bicycle wheel made

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

Bunuel

11 Aug 2025, 23:58

5

2

579

12 Aug 2025, 10:19

ER

If x and y are nonzero integers, is x/y an integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

dzodzo85

03 Apr 2012, 01:41

53

7

35,202

12 Aug 2025, 02:03

ER

Jim had an average (arithmetic mean) of 86 on four tests, each grade

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Aug 2025, 22:00

3

2

505

11 Aug 2025, 10:46

ER

Last year, if Elena spent a total of $720 on newspapers, magazines

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

Bunuel

13 Jan 2014, 01:54

60

8

22,426

10 Aug 2025, 05:48

ER

If a, b, and c are integers, is a greater than b?

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

Bunuel

05 Dec 2016, 03:04

20

5

4,509

09 Aug 2025, 12:14

ER

A cafeteria served hamburgers and hot dogs on a certain day.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

07 Aug 2025, 22:00

3

1

506

by: ManifestDreamMBA

08 Aug 2025, 04:22

ER

On the x-y coordinate grid, are points A(m, n) and B(r, t) equidistant

505-555 (Easy) | Absolute Values, Coordinate Plane

505-555 (Easy) | Absolute Values, Coordinate Plane hide tags

Bunuel

25 May 2020, 05:03

9

5

2,907

06 Aug 2025, 10:20

ER

A certain computer company produces two different monitors, P and Q.

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

GMATinsight

22 Apr 2020, 00:46

58

5

18,816

by: GmatKnightTutor

06 Aug 2025, 04:55

ER

Is |a| + |b| >|a + b| ? (1) |ab| > ab (2) a/b < 0

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

Bunuel

17 Nov 2021, 05:00

4

2

1,967

05 Aug 2025, 10:01

ER

Is |x - 10| > |x - 30|? (1) x > 10 (2) x > 25

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

KaranB1

20 Jul 2019, 05:38

43

10

11,379

05 Aug 2025, 09:47

ER

Ice hockey teams R and U played against each other in the final games

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

03 Aug 2025, 22:00

3

4

665

04 Aug 2025, 18:30

ER

What is the sum of a certain pair of consecutive odd integers?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

25 Oct 2015, 09:18

175

16

40,460

04 Aug 2025, 14:26

ER

What is the value of x+y? (1) |x|+|y|=0 (2) x^2 + y^2 = 0

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

Kushchokhani

30 Jan 2023, 07:50

2

3

1,952

04 Aug 2025, 10:10

ER

A nut is to be selected at random from a certain bowl that contains

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

houston1980

01 Jul 2023, 09:20

59

3

16,185

02 Aug 2025, 03:41

ER

How much revenue did a concert venue receive from the sale of 1500

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

31 Jul 2025, 22:00

3

2

742

01 Aug 2025, 18:54

ER

A cake recipe uses a constant ratio of 2 teaspoons vanilla extract to

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

mun23

25 Feb 2013, 12:17

13

2

7,106

31 Jul 2025, 23:11

ER

Carla can drive from her home to the mall by one of the two possible

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

30 Jul 2025, 22:00

3

594

31 Jul 2025, 10:09

ER

Set J consists of terms {2, 7, 12, 17, a}. Is a > 7? (1) a is the

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

1, 2

Bunuel

07 Apr 2020, 05:26

13

21

6,754

29 Jul 2025, 23:11

ER

If a, b, and c are prime, is abc odd?

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

Kaushik786

20 Sep 2021, 07:08

2

3,037

29 Jul 2025, 08:28

ER

What is the total price of one copy of book X and two copies of book Y

505-555 (Easy) | Algebra, Word Problems

505-555 (Easy) | Algebra, Word Problems hide tags

Bunuel

28 Jul 2025, 22:00

5

2

794

by: poojaarora1818

29 Jul 2025, 03:02

ER

Jim had four tests, with each grade being an integer. Did Jim score 10

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

Bunuel

27 Jul 2025, 22:00

3

579

28 Jul 2025, 17:59

ER

Ann bought five different kinds of fruit: apples, oranges, pears

505-555 (Easy) | Fractions and Ratios, Word Problems

505-555 (Easy) | Fractions and Ratios, Word Problems hide tags

ajaym28

26 Oct 2014, 06:16

28

5

18,277

28 Jul 2025, 11:10

ER

When 1,000 children were inoculated with a certain vaccine,

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

elgo

11 May 2014, 06:25

167

19

59,296

27 Jul 2025, 01:04

ER

A certain expressway has Exits J, K, L, and M, in that order. What is

505-555 (Easy) | Arithmetic, Coordinate Plane

505-555 (Easy) | Arithmetic, Coordinate Plane hide tags

Bunuel

30 Jul 2012, 02:12

71

6

30,840

26 Jul 2025, 04:47

ER

The figure above shows four pieces of tile that have been glued togeth

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

11 Dec 2014, 07:21

23

4

9,515

24 Jul 2025, 18:52

ER

Eloises aquarium contains six tropical fish. If the largest fish is 4

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

21 Jul 2025, 22:00

6

3

569

22 Jul 2025, 10:48

ER

Each month, Jim receives a base salary plus a 10 percent commission on

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

26 Jun 2017, 02:59

44

8

28,486

22 Jul 2025, 07:15

ER

In the rectangular coordinates in the figure above, what is the value

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

16 Jun 2021, 03:30

2

4

2,943

22 Jul 2025, 07:05

ER

Is x > y? (1) x^2 > y (2) x – |y| > 0

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

Bunuel

23 Mar 2016, 11:37

28

12

7,492

21 Jul 2025, 10:42

ER

What was the median of the daily numbers of phone calls received at a

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

houston1980

01 Jul 2023, 09:44

63

3

16,257

20 Jul 2025, 09:18

ER

If a and b are positive itegers, what is the value of a + b?

505-555 (Easy) | Multiples and Factors, Number Properties

505-555 (Easy) | Multiples and Factors, Number Properties hide tags

Stiv

02 Jul 2012, 03:47

62

8

16,378

19 Jul 2025, 15:43

ER

What was the percentage of defective items produced at a factory?

505-555 (Easy) | Fractions and Ratios, Word Problems

505-555 (Easy) | Fractions and Ratios, Word Problems hide tags

Bunuel

17 Jul 2025, 22:00

4

3

830

18 Jul 2025, 20:13

ER

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

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

17 Jul 2025, 22:00

4

597

18 Jul 2025, 11:47

ER

If p and q are positive integers, what is the value of q?

505-555 (Easy) | Exponents

505-555 (Easy) | Exponents hide tags

Stiv

28 Jun 2012, 06:56

39

3

17,162