GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

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Bunuel

25 Oct 2022, 08:11

189

15

89,195

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

872

24

194,313

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,398

by: bb

23 Aug 2026, 13:01

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For a series of positive numbers P1, P2, P3, ..., Pn, P(n + 1)= Pn/3 f

555-605 (Medium) | Sequences

555-605 (Medium) | Sequences hide tags

Bunuel

17 Nov 2021, 03:00

3

2

3,823

by: MarkGMATMentor

31 Jul 2026, 16:13

ER

In a certain sequence, term a_n can be found using the formula

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

rheabiswal

06 Oct 2018, 03:04

35

7

5,321

by: bumpbot

31 Jul 2026, 11:19

ER

The students in College X must take two, and no more, of these five

555-605 (Medium) | Non-Math Related

555-605 (Medium) | Non-Math Related hide tags

gmatt1476

30 May 2024, 12:26

32

4

7,158

by: horrorslive

31 Jul 2026, 06:08

ER

A certain parking lot contains only cars and vans. If the parking

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

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

Bunuel

30 Jul 2026, 19:00

5

3

298

by: onlyPlanA

31 Jul 2026, 03:32

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The number of cats in Libbys house is twice the number of dogs and on

Sub 505 (Easy) | Word Problems

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Bunuel

27 Jul 2026, 19:00

1

4

344

by: egmat

31 Jul 2026, 00:48

ER

Working together, Rafael and Salvador can tabulate a certain set of da

555-605 (Medium) | Work and Rate Problems

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1, 2

Bunuel

03 Aug 2018, 10:35

264

32

41,830

by: bumpbot

30 Jul 2026, 18:56

ER

A school employs math teachers and physics teachers. If 4 of these

555-605 (Medium) | Combinations, Word Problems

555-605 (Medium) | Combinations, Word Problems hide tags

Bunuel

28 Mar 2025, 00:30

10

5

1,558

by: MarkGMATMentor

30 Jul 2026, 18:24

ER

Chris was in an electronic appliances store to buy an LED computer

705-805 (Hard) | Non-Math Related

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1, 2

dpchen

29 Dec 2023, 08:01

158

21

16,493

by: egmat

30 Jul 2026, 13:14

ER

Company M has two divisions X and Y. Both the divisions have exactly

605-655 (Medium) | Percent and Interest Problems, Word Problems

605-655 (Medium) | Percent and Interest Problems, Word Problems hide tags

ExpertsGlobal5

21 Jan 2026, 22:00

16

7

1,388

by: egmat

30 Jul 2026, 08:19

ER

A box contains 7 balls, and each ball is exactly 1 color

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

BrentGMATPrepNow

07 Mar 2023, 11:04

12

5

2,827

by: egmat

30 Jul 2026, 08:03

When the point totals for 20 participants were recorded, thr

805+ (Hard) | Word Problems

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kevincan

15 Mar 2026, 16:03

3

500

by: egmat

30 Jul 2026, 08:02

Two functions g(y) and h(y, z) are defined for all 4-digit integers

655-705 (Hard) | Functions and Custom Characters, Multiples and Factors

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ChandlerBong

02 Jun 2023, 08:34

9

3

2,061

by: bumpbot

30 Jul 2026, 06:15

ER

If Joe and Sam can complete a job in 2 hours working together, what

505-555 (Easy) | Work and Rate Problems

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Bunuel

29 Jul 2026, 19:00

3

1

288

by: odionam

30 Jul 2026, 03:11

ER

In a certain telephone poll, 600 people were asked whether they were

505-555 (Easy) | Word Problems

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Bunuel

29 Jul 2026, 19:00

3

2

300

by: odionam

30 Jul 2026, 03:03

ER

Bunuel's Algebra DS Diagnostic Test

505-555 (Easy) | Absolute Values +11 tags

505-555 (Easy), 555-605 (Medium), 655-705 (Hard) | Absolute Values, Algebra, Combinations, Exponents, Fractions and Ratios, Functions and Custom Characters, Inequalities, Min-Max Problems, Percent and Interest Problems, Roots hide tags

1, 2, 3

Bunuel

17 Aug 2023, 01:45

182

56

26,758

by: Bunuel

30 Jul 2026, 02:32

ER

A firm has at least 5 partners, of whom at least 2 are male and at

805+ (Hard) | Combinations, Probability

805+ (Hard) | Combinations, Probability hide tags

RonPurewal

12 Nov 2017, 09:27

35

14

6,159

by: bumpbot

29 Jul 2026, 14:51

ER

There are three times as many hot dogs as pizzas and five times as

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

27 Jul 2026, 19:00

6

3

454

by: TheAdmissionHub

29 Jul 2026, 11:19

ER

If m is a positive integer, then m^3 has how many digits?

705-805 (Hard) | Fractions and Ratios

705-805 (Hard) | Fractions and Ratios hide tags

Bunuel

26 Apr 2020, 10:10

407

13

49,101

by: egmat

29 Jul 2026, 10:50

ER

Paula has a collection of used books worth $104. How many are

555-605 (Medium) | Word Problems

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Bunuel

28 Jul 2026, 19:00

4

3

326

by: TheAdmissionHub

29 Jul 2026, 10:38

ER

In the sequence T, the first term is the non-zero number a, and each

805+ (Hard) | Sequences

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Bunuel

06 Dec 2023, 02:30

6

4

2,358

by: zitipiti

29 Jul 2026, 09:48

Ten pressure measurements were taken for the liquid flowing through a

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

Bunuel

27 Dec 2023, 02:30

13

2

2,269

by: bumpbot

29 Jul 2026, 08:40

ER

Are x and y both positive? (1) 2x - 2y = 1 (2) x/y > 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2, 3, 4

Manbehindthecurtain

05 Apr 2018, 13:19

1.1k

65

195,507

by: Anshul123anshul

29 Jul 2026, 07:30

ER

If company Ys profits decreased $1.5 million from last year to this

555-605 (Medium) | Word Problems

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Bunuel

28 Jul 2026, 19:00

2

276

by: madsb18

29 Jul 2026, 05:30

ER

New DS set!!!

555-605 (Medium) | Algebra +7 tags

555-605 (Medium), 655-705 (Hard) | Algebra, Fractions and Ratios, Geometry, Inequalities, Probability, Remainders, Work and Rate Problems hide tags

1, 2, 3

Bunuel

10 Apr 2013, 08:10

821

57

139,689

by: bumpbot

29 Jul 2026, 05:12

ER

In the x-y plane, did y=ax2+bx+c intersect with x-axis?

605-655 (Medium) | Functions and Custom Characters

605-655 (Medium) | Functions and Custom Characters hide tags

MathRevolution

02 May 2016, 23:16

14

3

3,685

by: bumpbot

29 Jul 2026, 03:37

ER

64 candidates are competing for 5 positions at a consulting

705-805 (Hard) | Combinations, Probability

705-805 (Hard) | Combinations, Probability hide tags

fozzzy

23 May 2013, 09:33

95

13

11,980

by: egmat

29 Jul 2026, 02:17

ER

Each person in a room attends exactly one of the three colleges A, B,

555-605 (Medium) | Probability

555-605 (Medium) | Probability hide tags

LakerFan24

23 Apr 2017, 03:06

5

7,395

by: bumpbot

28 Jul 2026, 22:26

ER

How long did it take Carlos to drive nonstop from his home

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

enigma123

15 Mar 2012, 14:13

42

11

9,362

by: KarishmaB

28 Jul 2026, 21:59

ER

GMAT Club Olympics 2025 (Day 5): A moving service charges p dollars

705-805 (Hard) | Word Problems

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1, 2, 3, 4, 5

Bunuel

04 Jul 2025, 08:00

82

83

3,595

by: bumpbot

28 Jul 2026, 13:57

ER

A small library has books on twenty different subjects including, most

555-605 (Medium) | Non-Math Related, Word Problems

555-605 (Medium) | Non-Math Related, Word Problems hide tags

GMATCoachBen

06 Feb 2024, 19:27

62

13

11,853

by: egmat

28 Jul 2026, 11:13

ER

For a certain city's library, the average cost of purchasing each new

655-705 (Hard) | Word Problems

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1, 2

AbdurRakib

22 Jun 2017, 15:43

284

23

46,043

by: egmat

28 Jul 2026, 10:55

What percentage of the agents at Best Be Safe insurance company sell

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

19 Dec 2019, 03:39

14

4

5,679

by: bumpbot

28 Jul 2026, 06:58

ER

What is the monthly rent for a certain apartment?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

ShreeyaV

25 Oct 2023, 23:58

7

6

8,650

by: bumpbot

28 Jul 2026, 06:22

ER

GMAT Club Olympics 2025 (Day 8): There are 10 trees in a garden

805+ (Hard) | Probability

805+ (Hard) | Probability hide tags

1, 2, 3, 4

Bunuel

09 Jul 2025, 08:00

59

78

3,542

by: bumpbot

28 Jul 2026, 05:12

ER

GMAT Club Olympics 2025 (Day 3): Yesterday, on an audio streaming

805+ (Hard) | Statistics and Sets Problems, Word Problems

805+ (Hard) | Statistics and Sets Problems, Word Problems hide tags

1, 2, 3, 4, 5

Bunuel

02 Jul 2025, 08:00

88

85

3,913

by: bumpbot

28 Jul 2026, 04:55

ER

After winning 50 percent of the first x games it played

555-605 (Medium) | Percent and Interest Problems

555-605 (Medium) | Percent and Interest Problems hide tags

Carcass

23 Mar 2013, 09:35

19

4

7,034

by: bumpbot

28 Jul 2026, 00:55

ER

After winning 80% of his first 40 matches, Igby won 50

805+ (Hard) | Percent and Interest Problems, Word Problems

805+ (Hard) | Percent and Interest Problems, Word Problems hide tags

BN1989

14 Mar 2012, 04:03

72

12

12,707

by: bumpbot

28 Jul 2026, 00:50

ER

An infinite sequence of positive integers is called an "alph

555-605 (Medium) | Sequences

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Ev123

23 Jul 2014, 05:24

116

16

35,713

by: bumpbot

27 Jul 2026, 21:11

ER

There are exactly 6 teams in league x. What was the total

555-605 (Medium) | Combinations

555-605 (Medium) | Combinations hide tags

eybrj2

06 Mar 2012, 23:36

133

18

28,248

by: bumpbot

27 Jul 2026, 20:27

ER

The profit from the sale of a certain appliance increases

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

26 Aug 2012, 03:10

72

10

26,319

by: bumpbot

27 Jul 2026, 19:40

ER

A quality-control bin contains 30 sensor chips, some of which are

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

19 Jul 2026, 19:00

3

601

by: MarkGMATMentor

27 Jul 2026, 18:25

Georges Gas Station gets fuel from two different fuel suppliers

655-705 (Hard) | Overlapping Sets

655-705 (Hard) | Overlapping Sets hide tags

Bunuel

19 Jan 2026, 03:45

13

4

924

by: egmat

27 Jul 2026, 11:18

ER

In how many ways can a coach select a 4-person university team from a

505-555 (Easy) | Combinations +2 tags

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1, 2

pate13

24 Aug 2015, 17:49

67

22

16,415

by: SlowtoBoot

27 Jul 2026, 07:10

Gayle purchased two items, X and Y, which were both on sale. If the

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Bunuel

22 Nov 2023, 02:30

6

2

1,761

by: bumpbot

27 Jul 2026, 06:31

ER

In a certain class, some students donated cans of food to a local food

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

28 May 2026, 09:36

28

8

21,059

by: bumpbot

27 Jul 2026, 00:51

ER

Team A and Team B have the same numbers of players on them.

605-655 (Medium) | Math Related, Statistics and Sets Problems

605-655 (Medium) | Math Related, Statistics and Sets Problems hide tags

MartyMurray

07 Mar 2026, 09:19

19

2

2,710

by: MrMaxMan

26 Jul 2026, 19:48

ER

List S and list T each contain 5 positive integers, and for each list

505-555 (Easy) | Statistics and Sets Problems

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

alimad

20 Oct 2019, 01:18

37

7

18,355

by: GulfTube

26 Jul 2026, 06:15

There are five homes. If the median price of a home is $200,000

705-805 (Hard) | Min-Max Problems, Statistics and Sets Problems

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itisSheldon

28 Mar 2018, 07:18

81

8

11,011

by: GulfTube

26 Jul 2026, 05:21

Joyce has a recipe for a batch of brownies and a recipe for a coffee

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

25 Jul 2026, 19:00

1

271

by: dhart

26 Jul 2026, 04:15

ER

Do at least 60 percent of the students in Pats class walk to school?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

21 Oct 2015, 21:43

68

10

30,879

by: manupoonia

26 Jul 2026, 04:08