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

79,061

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

188,725

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

488,274

by: bb

29 Aug 2025, 13:27

ER

Is quadrilateral ABCD a parallelogram? (1) AB = BC (2) CD = DA

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

07 Mar 2023, 08:08

2

1,874

by: SaquibHGMATWhiz

22 Mar 2023, 06:50

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Is quadrilateral ABCD a parallelogram? (1) AB = BC (2) BC = CD = DA

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

Bunuel

07 Mar 2023, 08:10

2

1

1,821

by: stne

14 Mar 2023, 11:30

ER

Is quadrilateral ABCD a parallelogram? (1) BC and DA are parallel.

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

12 May 2021, 07:00

1

1,488

by: MarmikUpadhyay

12 May 2021, 21:53

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Is quadrilateral ABCD a parallelogram? (1) All four internal angles

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 May 2021, 08:00

4

2

1,667

by: bumpbot

13 Aug 2023, 21:38

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Is quadrilateral ABCD a parallelogram?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

anant07

19 Nov 2014, 00:31

36

10

12,791

by: bumpbot

14 May 2023, 06:53

ER

Is quadrilateral ABCD a parallelogram?

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

08 Mar 2021, 01:15

23

14

6,510

by: bumpbot

16 Apr 2023, 06:40

ER

Is quadrilateral a square?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

balas

03 Apr 2012, 07:27

22

8

12,849

by: bumpbot

24 Feb 2023, 08:32

ER

Is quadrilateral ABCD a parallelogram ?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

innocous

25 Aug 2013, 10:58

96

18

13,084

by: bumpbot

23 Oct 2024, 04:47

ER

Is q^r + 1 an odd number? (1) q + r is even (2) q is even

705-805 (Hard) | Exponents, Number Properties

705-805 (Hard) | Exponents, Number Properties hide tags

Bunuel

03 Jul 2018, 11:08

13

5

2,708

by: bumpbot

25 Nov 2023, 05:31

ER

Is q^2 an odd integer? (1) q is an odd integer (2) q^4 is a

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

enigma123

19 Mar 2012, 04:59

11

5

3,726

by: bumpbot

30 May 2017, 11:36

ER

Is q prime? (1) q is between 115 and 125 (2) q + 1 is not prime.

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

29 Dec 2016, 04:57

3

10

2,796

by: bumpbot

08 Sep 2021, 17:28

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Is q positive?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

14 Jan 2015, 02:29

9

5

4,451

by: bumpbot

03 Jan 2026, 05:11

ER

Is q negative?

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

21 Feb 2016, 13:46

4

3

4,015

by: bumpbot

11 Dec 2019, 18:00

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Is q less than .30 ? (1) q is less than 1/3. (2) q is equal to 1/4.

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

07 Apr 2020, 07:24

1

1,054

by: preetamsaha

07 Apr 2020, 07:50

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Is q divisible by 6?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

d999

11 Mar 2020, 01:44

4

2,705

by: bumpbot

08 Oct 2023, 00:38

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Is q an integer? (1) 3q is an integer. (2) 5q is an integer.

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

15 Nov 2018, 04:39

3

3,508

by: saarthakkhanna04

16 Jul 2022, 05:19

ER

Is q a negative number?

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

21 Nov 2016, 09:17

4

5

5,501

by: bumpbot

18 Feb 2022, 03:38

ER

Is q < 0?

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Mo2men

28 Dec 2018, 21:46

5

3

3,035

by: bumpbot

07 Sep 2024, 08:58

ER

Is q < 0 ? (1) p^2/q^3 (2) q^2 - p^3/q <0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

20 Dec 2021, 02:30

3

2,584

by: MBAHOUSE

15 Jul 2022, 09:23

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Is q > t ? (1) qp^2 < tp^2 (2) qp^3 > tp^3

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

11 Nov 2014, 05:41

32

13

9,715

by: bumpbot

19 Apr 2023, 13:02

ER

Is q > r?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

HKD1710

15 Jan 2017, 08:26

2

7

2,243

by: Bunuel

16 Jan 2017, 06:10

ER

Is Q > 0 ? (1) P*Q^3*R^4 <0 (2) P*Q^2*S^6 > 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

06 Jun 2022, 07:06

7

3

2,663

by: bumpbot

01 Jul 2025, 13:13

ER

Is q - 1/5 > 6/7 ?

605-655 (Medium) | Arithmetic

605-655 (Medium) | Arithmetic hide tags

neeti1813

06 Sep 2014, 18:28

11

4

6,055

by: bumpbot

29 Jan 2024, 11:16

Is product of integers m and n positive? 1) m+ n is positive 2) m-n is

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

TheUltimateWinner

18 Jul 2019, 08:16

2

1,385

by: bumpbot

17 Jul 2023, 04:51

ER

Is product 2*x*5*y an even integer? 1.2 + x + 5 + y is an

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

1, 2

prinits

29 May 2009, 04:53

104

20

14,010

by: bumpbot

31 May 2023, 13:50

ER

Is pr > 0 ? (1) pq > 0 (2) q/r < 0

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

12 Jun 2023, 01:30

4

1,791

by: hinasingh

13 Jun 2023, 01:17

ER

Is pqrst > 0 ? (1) p - qrst = 0 (2) pqr/st > 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

aarish2102

10 Jul 2022, 06:48

9

4

3,423

by: bumpbot

08 Aug 2024, 01:32

ER

Is pqr > 0 ? (1) pq > 0 (2) q/r < 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

kobi90

10 Nov 2020, 09:50

12

10,426

by: bumpbot

12 Apr 2023, 21:14

ER

Is pq positive? (1) (p + q)^2 > (p - q)^2 (2) (p - q)^2 is positive

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

31 Jul 2019, 01:11

1

3,766

by: firas92

31 Jul 2019, 01:24

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Is pq = 1? (1) pqp = p (2) qpq = q

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

DFG5150

01 Oct 2013, 03:21

77

16

28,490

by: Bunuel

29 Apr 2025, 10:07

ER

Is pq = 1 ? (1) p = 0 or pq = 1 (2) q = 0 or pq = 1

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Jun 2023, 01:30

3

2

1,444

by: zhanbo

15 Jun 2023, 02:04

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Is pq < 4 ? (1) p^2 + q^2 < 8 (2) p - q < 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

11 Nov 2019, 04:46

9

3

2,838

by: bumpbot

20 Aug 2023, 02:20

ER

Is pq < 0? (1) 14|p| + |q| = 0 (2) |p| + 14|q| = 0

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

31 Jul 2019, 01:12

15

4

3,835

by: bumpbot

04 Jun 2023, 09:48

ER

Is PQ > 1? (1) P^Q = 1 (2) Q = -1

555-605 (Medium) | Exponents, Inequalities

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

shivanigs

05 Nov 2012, 01:13

17

7

16,511

by: bumpbot

23 Jun 2023, 05:06

Is pq > 0? (1) x^2 - px + q = 0 has real and positive roots

705-805 (Hard) | Algebra, Inequalities

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

TheUltimateWinner

07 Apr 2019, 08:46

9

3

2,028

by: bumpbot

01 Nov 2023, 01:48

ER

Is pq > 0? (1) p < 0 (2) q < 0

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

Bunuel

14 Mar 2022, 01:30

3

2,361

by: GMATinsight

14 Mar 2022, 03:26

ER

Is pq > 0? (1) (2q)^p = 1 (2) p < 0

705-805 (Hard) | Exponents, Inequalities

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

Bunuel

17 Jan 2020, 02:33

10

6

7,723

by: bumpbot

12 Jul 2021, 13:59

ER

Is positive integer z greater than 275?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

shasadou

12 Sep 2015, 23:23

38

9

10,286

by: bumpbot

05 Jun 2025, 08:05

ER

Is positive integer z an odd integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

13 Apr 2016, 06:09

4

2,451

by: stonecold

15 Apr 2016, 05:07

ER

Is positive integer z an even number? (1) z! <= z (2) z! >= z

555-605 (Medium) | Inequalities, Number Properties

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

Bunuel

06 Dec 2018, 05:44

2

1

1,165

by: Ypsychotic

06 Dec 2018, 05:55

ER

Is positive integer x prime?

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

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

Bunuel

05 Feb 2015, 09:00

20

7

5,840

by: bumpbot

31 May 2024, 04:05

ER

Is positive integer x prime?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

14 Aug 2017, 02:17

1

3

1,600

by: sun90

14 Aug 2017, 03:42

ER

Is positive integer x odd?

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

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

Bunuel

05 Jan 2021, 01:15

28

10

4,307

by: bumpbot

02 Nov 2023, 10:03

ER

Is positive integer x greater than 1000? (1) x is a positive multiple

505-555 (Easy) | Inequalities, Multiples and Factors

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

Bunuel

15 Oct 2019, 23:04

3

3,565

by: bumpbot

07 Apr 2021, 08:06

ER

Is positive integer x divisible by positive integer y?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

09 Sep 2022, 01:30

5

1

924

by: dreamknight

09 Sep 2022, 02:13

ER

Is positive integer x divisible by 70?

505-555 (Easy) | Multiples and Factors

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

Bunuel

06 Feb 2018, 05:52

2

2,894

by: pushpitkc

06 Feb 2018, 10:04

ER

Is positive integer x divisible by 5? (1) The sum of the digits of x

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

09 Nov 2020, 09:45

3

3,068

by: Bunuel

12 Nov 2021, 08:24

ER

Is positive integer x divisible by 48?

555-605 (Medium) | Multiples and Factors

555-605 (Medium) | Multiples and Factors hide tags

Bunuel

20 May 2018, 11:41

16

8

9,167

by: bumpbot

03 Aug 2024, 14:50

ER

Is positive integer x divisible by 24?

605-655 (Medium) | Multiples and Factors

605-655 (Medium) | Multiples and Factors hide tags

BabySmurf

23 Jan 2014, 13:50

114

10

21,803

by: rvgmat12

30 Jan 2022, 04:59

ER

Is positive integer x a prime number? (1) x^2 +x ≤ 10 (2) x does not

605-655 (Medium) | Algebra +2 tags

605-655 (Medium) | Algebra, Multiples and Factors, Number Properties hide tags

GMATinsight

09 May 2018, 00:26

3

5

2,108

by: AD2GMAT

14 May 2018, 10:08