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

179

15

79,105

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,747

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

488,319

by: bb

29 Aug 2025, 13:27

ER

Is 1/(x - y) < y - x (1) 1/x < 1/y (2) 2x = 3y

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

rxs0005

28 Jun 2022, 03:40

112

13

24,007

by: bumpbot

20 Jan 2024, 09:18

ER

Is 1/(p^q - q^p) > 1

705-805 (Hard) | Algebra, Inequalities

705-805 (Hard) | Algebra, Inequalities hide tags

EgmatQuantExpert

24 May 2017, 12:00

38

6

4,460

by: bumpbot

23 Aug 2022, 08:50

ER

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

30 Oct 2019, 01:42

2

901

by: Archit3110

30 Oct 2019, 07:46

ER

Is 1/(a + b) > b - a?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

23 Mar 2017, 06:07

11

8

3,242

by: aaronmart14

25 Jul 2025, 14:46

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Is 1/(a - b) < b + a?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

21 Mar 2017, 05:41

12

8

2,851

by: bumpbot

24 Jul 2023, 03:45

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Is 1/(a - b) > b - a ? (1) a < b (2) 1 < |a - b|

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Bunuel

28 Feb 2014, 04:09

546

16

61,532

by: bumpbot

04 Jul 2025, 00:27

ER

Is 1/(5 - x) > x/5? (1) x < 8. (2) x > -8.

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

24 Jun 2016, 03:08

4

7

2,428

by: bumpbot

14 Jan 2022, 06:47

ER

Is 1 + x + x^2 + x^3 + x^4 + x^5 < 1/(1 - x) ? (1) x > 0 (2) x < 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

04 May 2021, 05:59

18

6

5,415

by: bumpbot

17 Jan 2024, 19:05

ER

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

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

MathRevolution

21 Mar 2016, 04:31

36

15

13,437

by: egmat

22 Jan 2026, 23:23

ER

Is 1 < y < 2 ? (1) y^2 < y (2) 1 < y^2 + y < 2

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

16 Dec 2019, 02:20

3

1

1,808

by: chetan2u

16 Dec 2019, 19:08

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Is 1 < x < 2? (1) 0 < x (2) x < 3

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

23 Sep 2018, 21:03

12

4

8,183

by: bumpbot

01 Apr 2025, 18:38

Is 1 < a < 0 ? (1) a^3 > a (2) a^2 > a^3

705-805 (Hard) | Exponents, Inequalities

705-805 (Hard) | Exponents, Inequalities hide tags

QuantMadeEasy

09 Jul 2024, 00:18

2

4

1,701

by: QuantMadeEasy

19 Feb 2020, 20:21

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Is 1 > |x - 1| ? (1) (x - 1)^2 > 1 (2) 0 > x

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

Hussain15

14 Jul 2010, 06:36

19

7

6,357

by: bumpbot

13 Mar 2023, 09:53

ER

Is 0< a/b < 1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

jenl2881

13 Nov 2013, 16:17

17

8

7,819

by: bumpbot

12 Jul 2023, 11:05

ER

Is 0.4 < x < 0.8 ? (1) 407x < 376 (2) 1400x > 1240

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

RudeyboyZ

04 Jun 2021, 13:18

18

12

10,692

by: bumpbot

04 Jun 2023, 22:01

ER

Is 0 between x and y? (1) x - y > 0 (2) x^2 - y^2 > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

11 May 2023, 09:30

1

917

by: gmatophobia

11 May 2023, 12:50

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Is 0 < y < 1 ? (1) 0 < y^(1/2) < 1 (2) y^2 = 1/4

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Carcass

14 Sep 2012, 18:48

24

13

12,467

by: bumpbot

25 Jun 2023, 01:46

ER

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

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

24 Jan 2023, 08:12

1

881

by: gmatophobia

24 Jan 2023, 13:25

ER

Is 0 < m < 1? (1) m^2 is less than 1. (2) m^2 < m

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

26 May 2021, 06:00

1

1,390

by: chetan2u

26 May 2021, 21:06

ER

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

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

18 Mar 2020, 10:38

9

8

3,779

by: bumpbot

01 Aug 2023, 15:47

ER

Is 0 < (x−y)/(x−2y) < 1?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

13 Feb 2015, 08:45

7

8

5,763

by: Fdambro294

19 Jan 2022, 02:17

ER

Is 0 > ab?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

30 Dec 2014, 07:44

11

3,553

by: HKD1710

21 Aug 2016, 06:16

ER

Is √p a non-integer? (1) p = r × 10 r, where r is a positive odd in

555-605 (Medium) | Exponents, Number Properties

555-605 (Medium) | Exponents, Number Properties hide tags

Bunuel

03 Mar 2020, 04:01

20

6

4,618

by: bumpbot

12 Nov 2024, 08:41

ER

Is √abcd an integer, where a,b,c,d are all prime numbers?

805+ (Hard) | Algebra, Number Properties

805+ (Hard) | Algebra, Number Properties hide tags

rajarshee

24 Oct 2015, 00:27

13

9

4,208

by: bumpbot

18 Sep 2025, 22:51

ER

Is √7ab an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

07 Oct 2015, 06:33

6

5

6,473

by: sdow

30 Jul 2024, 00:12

ER

Is √(x + y) an integer?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Jun 2020, 02:58

13

11

8,762

by: bumpbot

04 Oct 2024, 19:41

ER

Is √(56x) an integer?

655-705 (Hard) | Multiples and Factors, Number Properties

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

honchos

01 Dec 2013, 17:36

10

4

6,291

by: bumpbot

15 Jul 2025, 13:18

ER

Is −3 ≤ x ≤ 3 ? (1) x^2 + y^2 = 9 (2) x^2 + y ≤ 9

605-655 (Medium) | Algebra, Inequalities

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

gmatt1476

21 Sep 2019, 16:44

155

13

19,443

by: bumpbot

06 Nov 2025, 05:53

ER

Is |xy| ≥ 1?

555-605 (Medium) | Absolute Values, Inequalities

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

Rca

18 Oct 2014, 08:33

4

2

2,862

by: bumpbot

06 Sep 2016, 04:22

ER

Is |xy| = 6? (1) (x - 2)(y + 3) = 0 (2) y = 3

655-705 (Hard) | Absolute Values, Algebra

655-705 (Hard) | Absolute Values, Algebra hide tags

TheUltimateWinner

30 Mar 2021, 10:55

3

2

1,786

by: chetan2u

19 Aug 2023, 04:53

ER

Is |xy| = 12? (1) (y + 4)(x - 3) = 0 (2) y = 4

605-655 (Medium) | Absolute Values, Algebra

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

Bunuel

09 Jun 2022, 20:00

3

2

1,605

by: bumpbot

20 Mar 2023, 07:03

ER

Is |xy| > xy? (1) (x^2y^2)^(1/2) = xy (2) |x| + |y| = x + y

605-655 (Medium) | Absolute Values, Inequalities

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

Bunuel

13 Sep 2017, 21:48

38

16

7,157

by: bumpbot

29 Jul 2025, 02:43

ER

Is |xy| > x^2*y^2 ? (1) 0 < x^2 < 1/4 (2) 0 < y^2 < 1/9

505-555 (Easy) | Absolute Values, Inequalities

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

DelSingh

17 Aug 2013, 12:51

234

19

33,398

by: bumpbot

26 Feb 2025, 07:18

ER

Is |x5|>4?

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

guerrero25

20 Feb 2013, 11:08

29

17

9,692

by: bumpbot

27 Jul 2022, 10:24

ER

Is |x|y > |y| ? (1) y > 0 (2) x < 0

605-655 (Medium) | Absolute Values, Inequalities

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

chetan2u

13 Sep 2019, 03:30

9

3

1,863

by: Kinshook

13 Sep 2019, 12:22

ER

Is |x|+x>|x|? 1) x<y^2 2) x+y^2<0

555-605 (Medium) | Absolute Values, Inequalities

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

TheUltimateWinner

10 Mar 2019, 09:52

4

6

2,899

by: bumpbot

20 Nov 2021, 02:30

Is |x|<6? 1) (x+6)(x-6)≤0 2) (x-6)(x-9)≤0

705-805 (Hard) | Absolute Values, Inequalities

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

TheUltimateWinner

23 Mar 2019, 08:50

3

1,765

by: stne

24 Mar 2019, 11:56

ER

Is |x|/y>x/y, where x is not equal to 0?

705-805 (Hard) | Absolute Values, Inequalities

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

chetan2u

27 Jul 2018, 00:14

1

5

1,917

by: Salsanousi

16 Apr 2020, 23:19

ER

Is |x|/x=1

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

chetan2u

25 May 2017, 10:12

1

2

1,933

by: amanvermagmat

25 May 2017, 10:54

ER

Is |x|/x > |y|/y?

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

chetan2u

19 May 2016, 22:35

46

7

5,177

by: CrackverbalGMAT

19 Aug 2021, 20:55

ER

Is |x|/|y| < |x||y|? (1) x^3 > y^3 (2) y^5 > y^4

705-805 (Hard) | Absolute Values, Inequalities

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

TheUltimateWinner

26 Mar 2019, 03:59

14

13

2,772

by: bumpbot

01 Dec 2020, 18:54

ER

Is |x|*y>|y|*x? (1) y>x

705-805 (Hard) | Absolute Values +2 tags

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

chetan2u

06 Nov 2022, 22:17

2

1,086

by: KrishnanTN

11 Nov 2022, 01:41

ER

Is |x|*y - x*|y| > x*y, where x and y are non-zero integers

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

chetan2u

11 Jun 2016, 20:06

10

8

2,859

by: vard

11 Aug 2018, 23:35

ER

Is |x|*|y|>x*y?

705-805 (Hard) | Absolute Values, Inequalities

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

chetan2u

30 May 2016, 07:26

12

5

3,023

by: bumpbot

19 Aug 2023, 03:10

ER

Is |x|^2 - 5|x| + 6 > 0? (1) |x| > 2 (2) |x| < 3

705-805 (Hard) | Absolute Values, Inequalities

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

TheUltimateWinner

20 Mar 2019, 10:39

10

11

3,294

by: Oppenheimer1945

20 Jun 2024, 00:15

ER

Is |x| ≤ 4 ? |x + 2| + |x − 4| > 2|x − 1| |(x + 4)(x − 3)| > 8

805+ (Hard) | Absolute Values, Inequalities

805+ (Hard) | Absolute Values, Inequalities hide tags

Ayush1692

22 Mar 2018, 03:12

44

10

5,310

by: bumpbot

22 Oct 2024, 05:38

ER

Is |x| = y + z?

655-705 (Hard) | Absolute Values, Inequalities

655-705 (Hard) | Absolute Values, Inequalities hide tags

1, 2

pgmat

28 Nov 2013, 10:24

33

21

15,687

by: bumpbot

31 May 2024, 12:31

ER

Is |x| = y + 1? (1) y + x = -1 (2) x < 0

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

Bunuel

16 Sep 2023, 05:45

2

1,357

by: rajkoushik17

17 Jul 2025, 17:28

ER

Is |x| = y - z ? (1) x + y = z (2) x < 0

555-605 (Medium) | Absolute Values, Inequalities

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

DenisSh

01 Jun 2021, 03:27

530

14

67,084

by: totaltestprepNick

28 Feb 2026, 14:43

ER

Is |x| = y - z ?

705-805 (Hard) | Absolute Values, Inequalities

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

RashedVai

04 Mar 2020, 22:05

16

3

1,940

by: Bunuel

10 Sep 2025, 03:43