GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

Bunuel

25 Oct 2022, 08:11

176

15

78,597

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,445

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,803

by: bb

29 Aug 2025, 13:27

ER

If the ratio of the number of teachers to the number of students

605-655 (Medium) | Fractions and Ratios

605-655 (Medium) | Fractions and Ratios hide tags

Walkabout

06 Dec 2012, 04:50

334

19

56,677

by: bumpbot

16 Sep 2025, 18:02

ER

Is the square root of (x - 5)^2 = 5 - x ? (1) -x|x| > 0 (2) 5 - x > 0

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

1, 2

jjhko

13 Jan 2007, 11:52

334

21

53,708

by: bumpbot

21 Aug 2025, 12:08

ER

Each of the letters in the table above represents one of the

605-655 (Medium) | Arithmetic, Graphs and Illustrations

605-655 (Medium) | Arithmetic, Graphs and Illustrations hide tags

Walkabout

07 Dec 2012, 10:08

333

8

58,108

by: bumpbot

07 Sep 2025, 02:17

ER

Is (x + 1)/(x - 3) < 0 ? (1) -1 < x < 1 (2) x^2 - 4 < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Lolaergasheva

11 Jun 2019, 04:52

332

18

83,533

by: bumpbot

11 Dec 2025, 04:34

ER

Of a group of 50 households, how many have at least one cat or at

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

1, 2, 3

Bunuel

26 Jun 2017, 02:27

331

40

52,218

by: bumpbot

27 Feb 2026, 22:07

ER

Bob and Wendy left home to walk together to a restaurant for

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

1, 2

sondenso

03 Mar 2008, 23:46

331

21

51,921

by: bumpbot

04 Jan 2026, 00:31

ER

In the rectangular coordinate system above, if OP < PQ, is the area of

655-705 (Hard) | Coordinate Plane, Geometry

655-705 (Hard) | Coordinate Plane, Geometry hide tags

1, 2

eybrj2

20 Aug 2019, 01:52

331

37

47,665

by: Bunuel

10 Nov 2025, 02:44

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If x and y are integers and y = |x + 3| + |4 - x|, does y equals 7?

555-605 (Medium) | Absolute Values, Inequalities

555-605 (Medium) | Absolute Values, Inequalities hide tags

zaarathelab

27 Jul 2015, 14:57

331

19

42,473

by: Ishaan30

22 May 2025, 12:38

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If perpendicular lines m and n intersect at (0,b) in the

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

nave

20 Oct 2013, 04:56

331

9

60,675

by: bumpbot

13 Feb 2025, 03:34

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If x, y, and d are integers and d is odd, are both x and y divisible

655-705 (Hard) | Multiples and Factors

655-705 (Hard) | Multiples and Factors hide tags

eybrj2

02 Mar 2012, 10:36

329

17

26,817

by: bumpbot

20 Apr 2025, 03:33

ER

If k = (n + 2)(n - 2), where n is an integer value greater

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

msbandi4321

06 Jun 2021, 14:20

329

15

73,882

by: bumpbot

07 Apr 2025, 09:46

ER

A group consisting of several families visited an amusement park where

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

16 Jun 2016, 06:03

327

18

50,642

by: bumpbot

05 Feb 2026, 23:28

ER

If u(u+v) <> 0 and u > 0 is 1/(u + v) < 1/u + v ?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

1, 2

PrashantPonde

26 Dec 2012, 00:36

327

23

37,174

by: bumpbot

05 Jun 2025, 23:18

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If n is a positive integer and k = 5.1*10^n, what is the value of k?

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

1, 2

MHIKER

23 Apr 2020, 13:50

325

21

55,216

by: bumpbot

15 Jan 2026, 07:37

ER

Is n/18 an integer? (1) 5n/18 is an integer. (2) 3n/18 is an integer.

805+ (Hard) | Multiples and Factors, Number Properties

805+ (Hard) | Multiples and Factors, Number Properties hide tags

1, 2

shinewine

29 Aug 2006, 14:07

324

21

48,916

by: bumpbot

22 Oct 2025, 00:58

ER

Mary persuaded n friends to donate $500 each to her election

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

1, 2

seofah

07 Apr 2009, 15:51

324

20

55,436

by: bumpbot

20 Sep 2025, 08:10

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If r and t are three-digit positive integers, is r greater than t ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

AbdurRakib

24 Jun 2017, 03:49

324

16

46,070

by: bumpbot

17 Jun 2025, 06:52

ER

How many hours would it take Pump A and Pump B working together, each

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

AbdurRakib

01 Jul 2016, 04:45

323

14

58,168

by: Aboyhasnoname

18 Sep 2025, 19:16

ER

A conveyor belt moves bottles at a constant speed of 120 centimeters

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

25 Oct 2015, 09:05

321

18

50,565

by: bumpbot

23 Mar 2025, 09:51

ER

If n is a positive integer, is the value of b - a at least twice the

555-605 (Medium) | Algebra, Exponents

555-605 (Medium) | Algebra, Exponents hide tags

1, 2

Walkabout

18 Dec 2012, 09:00

320

24

44,552

by: totaltestprepNick

24 Feb 2026, 09:43

ER

If n is an integer greater than 1 is 3^n-2^n divisible by 35

805+ (Hard) | Exponents +2 tags

805+ (Hard) | Exponents, Multiples and Factors, Number Properties hide tags

1, 2

Bunuel

28 Apr 2022, 06:57

320

29

29,267

by: bumpbot

27 Mar 2025, 05:12

ER

If x and y are positive integers, what is the value of xy?

Sub 505 (Easy) | Multiples and Factors, Number Properties

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

ctgmat123

30 Jun 2012, 05:29

319

19

110,736

by: totaltestprepNick

23 Feb 2026, 12:55

ER

What is the perimeter of PQRS ? (1) x = 30 degree (2) w= 45 degree

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

1, 2

Asifpirlo

05 Aug 2013, 03:15

319

29

48,249

by: bumpbot

21 Jan 2025, 07:38

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Is 5^k less than 1,000? (1) 5^(k+1) > 3,000 (2) 5^(k-1) = 5^k - 500

555-605 (Medium) | Exponents, Inequalities

555-605 (Medium) | Exponents, Inequalities hide tags

Walkabout

26 Dec 2012, 04:41

318

16

43,551

by: totaltestprepNick

28 Feb 2026, 14:29

ER

In the rectangular coordinate system, are the points (r,s) and (u,v)

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

1, 2

calvinhobbes

06 Feb 2019, 04:09

318

20

42,328

by: bumpbot

19 Jul 2025, 16:28

ER

x is an integer and x raised to any odd integer is greater

805+ (Hard) | Algebra +2 tags

805+ (Hard) | Algebra, Exponents, Inequalities hide tags

ykaiim

20 May 2012, 11:57

318

14

28,065

by: bumpbot

10 Mar 2025, 07:20

ER

Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35

605-655 (Medium) | Exponents, Inequalities

605-655 (Medium) | Exponents, Inequalities hide tags

1, 2

dvinoth86

20 Feb 2012, 18:55

317

28

51,210

by: bumpbot

16 Jan 2026, 08:55

ER

A clothing store's revenue last May was 6 percent less than

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

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

mun23

20 Nov 2023, 07:17

316

18

39,124

by: bumpbot

28 Mar 2026, 02:07

ER

In the standard (x,y) coordinate plane, what is the slope of the line

805+ (Hard) | Absolute Values, Coordinate Plane

805+ (Hard) | Absolute Values, Coordinate Plane hide tags

gmatt1476

21 Sep 2019, 18:19

315

16

29,377

by: hr1212

22 Mar 2025, 12:39

ER

A bank account earned 2% annual interest, compounded daily, for as lon

655-705 (Hard) | Percent and Interest Problems

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

gmatt1476

21 Sep 2019, 19:02

314

13

25,505

by: Bunuel

21 Sep 2025, 13:38

ER

Is a < 2? (1) In an xy plane, point (a,1) lies inside the circle whose

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

ranjitaarao

09 Oct 2021, 02:24

314

17

66,791

by: ahujaparth10

27 Oct 2023, 02:32

ER

For all z, [z] denotes the least integer greater than or equal to z.

555-605 (Medium) | Functions and Custom Characters

555-605 (Medium) | Functions and Custom Characters hide tags

Bunuel

18 Feb 2014, 03:38

313

15

44,001

by: totaltestprepNick

24 Feb 2026, 12:55

ER

A total of 20 amounts are entered on a spreadsheet that has

555-605 (Medium) | Statistics and Sets Problems

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

wizard

02 Mar 2012, 03:54

313

14

42,817

by: KarishmaB

18 May 2025, 22:14

ER

A certain bookcase has 2 shelves of books. On the upper

505-555 (Easy) | Statistics and Sets Problems

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

Walkabout

13 Dec 2012, 08:17

312

13

58,964

by: bumpbot

07 Jan 2026, 07:55

ER

If x is a positive integer, what is the value of (x + 24)^(1/2) - x

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

16 Jun 2016, 05:48

312

15

64,684

by: bumpbot

09 Oct 2025, 05:06

ER

Of the 66 people in a certain auditorium, at most 6 people

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

16 Jul 2012, 04:49

309

16

43,648

by: findingmyself

09 Nov 2025, 08:19

ER

When the digits of two-digit, positive integer M are reversed, the res

705-805 (Hard) | Multiples and Factors, Number Properties

705-805 (Hard) | Multiples and Factors, Number Properties hide tags

pratikshr

30 Sep 2014, 06:56

309

17

41,965

by: bumpbot

02 Jul 2025, 13:56

ER

If a and b are positive integers, is ³√ab an an integer?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

AbdurRakib

24 Jun 2016, 12:16

308

13

46,428

by: bumpbot

13 Jan 2026, 12:35

ER

Each week a certain salesman is paid a fixed amount equal to

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

1, 2

summer101

21 Jul 2012, 12:30

308

22

63,807

by: arnab24

30 Dec 2025, 22:50

ER

Is the standard deviation of the numbers in list R less than the stand

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

parkhydel

28 Apr 2020, 04:52

308

16

25,291

by: bumpbot

24 Jul 2025, 13:04

ER

If m and r are two numbers on a number line, what is the value of r?

705-805 (Hard) | Absolute Values, Coordinate Plane

705-805 (Hard) | Absolute Values, Coordinate Plane hide tags

msunny

18 Dec 2009, 15:27

308

18

34,324

by: bumpbot

09 Jul 2025, 10:11

ER

Set S consists of five consecutive integers, and set T consi

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

1, 2

mydreambschool

19 Feb 2011, 10:43

307

21

39,599

by: ShahriarArnob

07 Oct 2025, 01:38

ER

If ab0 and points (-a, b) and (-b, a) are in the same quadrant of the

805+ (Hard) | Coordinate Plane

805+ (Hard) | Coordinate Plane hide tags

1, 2

jitendra

05 Dec 2022, 08:26

306

21

43,544

by: bumpbot

19 Dec 2025, 10:16

ER

Is x negative? (1) x^3(1 - x^2) < 0 (2) x^2 - 1 < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

1, 2

gi

21 Dec 2009, 13:01

306

23

28,816

by: bumpbot

09 Oct 2025, 02:25

ER

A paint mixture was formed by mixing exactly 3 colors of paint. By vol

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

26 Apr 2019, 03:18

306

16

46,738

by: Aboyhasnoname

24 Jun 2025, 01:02

ER

If t and x are integers, what is the value of x?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

surupab

18 Apr 2017, 07:32

306

17

54,692

by: bumpbot

07 Nov 2024, 11:12

ER

If there are more than two numbers in a certain list, is each of the

605-655 (Medium) | Statistics and Sets Problems

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

devinawilliam83

27 Aug 2018, 05:49

305

19

63,144

by: NamDuong

22 Mar 2025, 01:57

ER

If (x + y)/z > 0, is x < 0 ? (1) x < y (2) z < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

09 Jul 2012, 04:49

304

16

57,340

by: totaltestprepNick

23 Feb 2026, 13:19

ER

If y>=0, What is the value of x? (1) |x-3|>=y (2) |x-3|<=-y

705-805 (Hard) | Absolute Values, Inequalities

705-805 (Hard) | Absolute Values, Inequalities hide tags

ugimba

09 Jan 2010, 14:17

302

15

45,455

by: manan01

19 Nov 2025, 10:05

ER

If x,y,and z are positive numbers,what is the value of the average (ar

555-605 (Medium) | Statistics and Sets Problems

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

1, 2

AbdurRakib

24 Jun 2017, 03:22

302

27

59,195

by: bumpbot

28 Sep 2025, 16:07