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

79,077

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

857

24

188,730

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

488,294

by: bb

29 Aug 2025, 13:27

ER

Is x + 1 odd? (1) 2x + 5 is odd. (2) x + 6 is odd.

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

05 Mar 2019, 05:20

2

1,204

by: Archit3110

05 Mar 2019, 11:45

ER

Is x + 2y - 3z > 0 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

14 Oct 2020, 00:15

30

14

6,398

by: bumpbot

24 Nov 2024, 05:03

ER

Is x + 5 greater than y - 5 ? (1) y < -3 (2) x > -13

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

15 Sep 2020, 09:15

21

5

5,636

by: bumpbot

05 Feb 2025, 15:09

ER

Is x + 7 an odd integer? (1) 2x + 3 is an odd integer. (2) x + 11 is

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 May 2019, 03:01

4

2,702

by: sumitkrocks

06 May 2019, 09:36

ER

Is x + x > -y (1) x + y = 1 (2) x > 0

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

Bunuel

08 Jun 2023, 06:15

2

1,115

by: andrenoble

08 Jul 2023, 05:05

ER

Is x + x^2 + ... +x^10 positive?

605-655 (Medium) | Exponents +2 tags

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

gmatpapa

02 Jan 2011, 02:34

39

2

9,250

by: bumpbot

21 Aug 2025, 15:54

ER

Is x + x^2 + x^3 > 0? (1) x + x^2 > 0 (2) x^2 + x^3 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

earnit

03 Oct 2014, 16:22

15

7

3,959

by: bumpbot

17 Oct 2023, 18:36

ER

Is x + y – z + t even?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

gmihir

29 Dec 2016, 15:50

27

9

10,352

by: Aditya00799

21 May 2025, 05:13

ER

Is x + y > -1? (1) x/y > -1 (2) y > -x

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Russ19

14 Jul 2021, 03:28

3

2,317

by: kntombat

14 Jul 2022, 05:18

ER

Is X + Y > 0

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Abhi077

29 Sep 2018, 09:07

8

3

1,893

by: SaquibHGMATWhiz

10 Jan 2023, 01:33

ER

Is x + y > 0 ? (1) x/(x + y) > 0 (2) y/(x + y) > 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

ritumaheshwari02

22 Jan 2022, 09:12

4

3,857

by: bumpbot

29 Sep 2022, 11:17

ER

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

26 Jan 2021, 01:15

9

6

3,731

by: GCMEMBER

26 Jan 2021, 23:08

ER

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

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

sunita123

14 Oct 2023, 00:44

34

10

14,606

by: sujoykrdatta

14 Apr 2025, 09:25

ER

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

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

TBT

13 Feb 2023, 00:28

2

1,035

by: Bunuel

13 Feb 2023, 01:57

ER

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

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

30 Nov 2022, 02:30

7

5

1,522

by: bumpbot

17 Aug 2025, 04:33

ER

Is x + y > 0 ? (1) x^2 - y^2 > 1 (2) x/y + 1 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

targetbusiness

14 Aug 2018, 06:09

8

2

2,173

by: stne

12 Jun 2019, 00:15

ER

Is x + y > 0 ? (1) x^2 - y^2 > 1 (2) x/y + 1 > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

surendar26

26 Dec 2010, 08:31

28

8

7,929

by: bumpbot

03 Mar 2025, 08:33

ER

Is x + y > 0 ? (1) xy > 0 (2) x^3y^2 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

25 Jan 2023, 12:15

1

879

by: mysterymanrog

25 Jan 2023, 14:41

ER

Is x + y > 0 (1) x/y > -1 (2) y > -x

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Russ19

22 Jun 2020, 00:14

6

5

1,624

by: rcgard

24 Jun 2020, 13:11

ER

Is x + y > 0?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

EgmatQuantExpert

23 May 2017, 06:58

4

5

6,094

by: bumpbot

29 Jan 2021, 12:23

ER

Is x + y > 0? (1) x > y (2) x + y -1 > 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

NandishSS

26 Jul 2016, 07:07

4

4,040

by: GMATinsight

16 Sep 2018, 05:49

ER

Is x + y > 0? (1) xy > 0 (2) x^3y^2 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 May 2020, 08:15

2

5

2,404

by: satya2029

30 Jun 2020, 10:34

ER

Is x + y > 1 ? (1) x > 0.798 (2) y < 0.201

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

31 Jan 2023, 07:08

1

908

by: BrentGMATPrepNow

31 Jan 2023, 09:04

ER

Is x + y > 1?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

TheUltimateWinner

26 Oct 2017, 03:07

19

11

3,450

by: ism1994

17 Nov 2020, 00:25

ER

Is x + y > 6? (1) x + 2y > 8 (2) 2x + y > 8

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

19 Jul 2019, 01:35

2

4

1,410

by: Archit3110

21 Jul 2019, 02:14

ER

Is x + y > 6? (1) x + 2y > 8 (2) 2x + y > 8

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

vikasp99

10 Mar 2017, 02:47

6

3

3,648

by: bumpbot

11 Feb 2024, 00:45

ER

Is x + y > z ? (1) z > y (2) z > x

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Paris75003

06 Oct 2021, 07:01

3

1,667

by: Bunuel

06 Oct 2021, 07:34

ER

Is x + y < 0? (1) 5x + 11y < 0 (2) 4x + 10y < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

BrentGMATPrepNow

19 Oct 2021, 07:03

12

2

2,267

by: bumpbot

12 Jun 2023, 13:00

ER

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

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

TheUltimateWinner

01 Mar 2019, 07:27

3

4

2,860

by: bumpbot

24 Jan 2023, 07:32

ER

Is x + y < 1 ? (1) x < 8/9 (2) y < 1/8

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

dddmba2012

23 Mar 2012, 13:39

81

9

26,920

by: bumpbot

26 Mar 2025, 08:18

Is X + Y + Z is positive? (1) X + Y is positive (2) Y + Z is positive

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

gmatophobia

06 Feb 2022, 01:46

1

948

by: stne

17 Feb 2022, 00:43

ER

Is x + y = 7? (1) The sentence x = 3 and y = 4 is incorrect.

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

18 May 2022, 07:30

3

5

1,506

by: Sushil117

29 May 2022, 12:06

ER

Is x + y an odd integer? (1) x is an odd integer (2) x - y is an even

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

17 Nov 2022, 02:30

10

4

2,181

by: arun054

13 Feb 2024, 10:20

ER

Is x + y equal to 3.6 ? (1) x ≥ 1.7 (2) y > 1.9

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

19 Jul 2019, 01:51

2

958

by: saurabh9gupta

19 Jul 2019, 05:34

ER

Is x + y negative? (1) x is positive. (2) y is negative.

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

hitmoss

15 May 2011, 06:42

8

7

8,898

by: AritraKundu

22 May 2022, 20:19

ER

Is x + y negative? (1) x is negative. (2) y is positive.

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

06 Jun 2019, 04:38

7

5

12,772

by: bumpbot

10 Jul 2023, 20:28

ER

Is x + y odd? (1) 2y + x is even (2) 2x + y is even

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

stonecold

21 Nov 2016, 02:22

6

5

4,195

by: bumpbot

24 Apr 2024, 23:12

ER

Is x + y positive? (1) x – y is positive. (2) y – x is negative.

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

d999

07 Mar 2020, 04:43

11

3

8,829

by: bumpbot

25 Jun 2024, 17:25

ER

Is x + y positive? (1) x y is positive (2) x/y is positive

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

rrsnathan

13 Oct 2023, 00:25

1

2

5,855

by: VivekSri

12 Oct 2023, 06:14

ER

Is x = -4 ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

nevilpat1

15 Sep 2014, 11:25

6

8

5,176

by: bumpbot

08 Jun 2024, 21:26

ER

Is x = |y - z|? (1) x = y - z (2) y > z

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

rxs0005

21 Sep 2010, 07:23

19

12

6,909

by: bumpbot

30 Jul 2025, 09:03

ER

Is x = 0 ? (1) x^2*y^3 > 0 (2) x^3*y^2 < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

20 Jan 2022, 11:45

1

3

3,446

by: Bunuel

26 Apr 2023, 09:56

ER

Is x = 0? (1) x^2 y = x^3 y (2) x^2 / y = x^3 y

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

rxs0005

07 Feb 2012, 16:23

11

5

4,631

by: bumpbot

01 Jan 2022, 09:17

ER

Is x = 0? (1) xy = x (2) x + y = x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

26 Feb 2021, 04:00

5

3

2,212

by: Bunuel

10 Nov 2021, 02:23

ER

Is x = 0? (1) xy = x (2) x + y = y

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

16 Feb 2021, 05:08

2

4

4,144

by: Bunuel

10 Nov 2021, 03:13

ER

Is x = 1, y = 2, and z = 3? (1) 5x + 2z + 3 = 3x + 4y = y + 2z + 3

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

20 Jul 2022, 01:30

1

4

1,277

by: Siddharth108

13 Aug 2022, 00:55

ER

Is x = 1, y = 2, and z = 3? (1) 5x + 2z = 3x + 4y = y + 3z (2) 5x + 2z

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

18 May 2022, 08:15

1

1,081

by: yashikaaggarwal

18 May 2022, 10:50

ER

Is x = 1?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

19 Jun 2015, 01:55

6

5

4,702

by: Bunuel

22 Jun 2015, 06:22

ER

Is x = 1? (1) x = x^3^0 (2) x^2 - 2x + 1 = 0

505-555 (Easy) | Algebra, Exponents

505-555 (Easy) | Algebra, Exponents hide tags

Bunuel

06 Feb 2015, 07:21

13

6

5,148

by: bumpbot

21 Apr 2023, 05:16

ER

Is x = 1/y? (1) xy = 1 (2) 1/(xy) = 1

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

21 Oct 2015, 21:33

30

16

30,883

by: bumpbot

10 Jun 2025, 22:26