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

79,226

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

188,829

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

488,454

by: bb

29 Aug 2025, 13:27

ER

Is 20 the average (arithmetic mean) of u, v, w, and 20?

555-605 (Medium) | Statistics and Sets Problems

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

AndreG

15 Jul 2010, 13:45

2

6

4,590

by: bumpbot

11 Aug 2017, 03:45

ER

If abc ≠ 0, is abc > 0 ?

805+ (Hard) | Absolute Values, Inequalities

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

Bunuel

11 Aug 2017, 01:19

7

6

3,130

by: Mo2men

12 Aug 2017, 11:20

ER

If m ≠ 0 and n ≠ 0, is mn > 0?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

29 Apr 2016, 03:56

8

6

3,787

by: ManishKM1

13 Aug 2017, 20:28

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If x is an integer, is 9^x + 9^-^x = b ? (1) 3^x + 3^-^x = b

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TehJay

17 Sep 2010, 17:05

3

6

3,446

by: Bunuel

15 Aug 2017, 05:21

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What is the remainder when the positive integer x is divided by 31?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

14 Aug 2017, 03:51

4

6

2,876

by: ScottTargetTestPrep

24 Aug 2017, 13:37

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What is the perimeter of a certain right triangle?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

MathRevolution

06 Mar 2017, 01:13

3

6

1,987

by: MathRevolution

09 Sep 2017, 21:29

ER

Is N=W ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

Poma777

30 Nov 2011, 19:54

15

6

4,766

by: BloomingLotus

12 Sep 2017, 09:12

ER

Is 10x > x^10 ? (1) x is a positive number. (2) x^2 – 1 < 0

655-705 (Hard) | Exponents, Inequalities

655-705 (Hard) | Exponents, Inequalities hide tags

Bunuel

21 Sep 2017, 05:03

3

6

2,610

by: Mo2men

22 Sep 2017, 05:18

ER

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

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

24 Sep 2017, 23:53

2

6

2,201

by: kunalsinghNS

25 Sep 2017, 02:57

ER

If the product of 7 consecutive integers is not zero, is the product

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

05 Oct 2017, 04:47

2

6

2,460

by: pra1785

11 Oct 2017, 10:38

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In the triangle above, what is the length of the side BC?

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LM

10 Apr 2010, 04:50

1

6

5,555

by: Bunuel

21 Oct 2017, 08:56

ER

AC is a diameter of the circle and B is a point on the circle. ACD is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

17 Oct 2017, 23:39

6

8,859

by: Plunkster82

23 Oct 2017, 18:02

ER

Is x greater than 2? (You may assume y is not equal to zero.)

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

22 Oct 2017, 06:50

6

2,260

by: PK32

25 Oct 2017, 10:37

ER

In ΔPQR above what is the value of y? (1) (3/2)x = 120 (2) x + y = 100

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

13 Nov 2017, 00:26

1

6

3,105

by: PK32

16 Nov 2017, 11:08

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If x, y, p, and q are positive, is x >= y?

Sub 505 (Easy) | Algebra, Inequalities

Sub 505 (Easy) | Algebra, Inequalities hide tags

blover

08 Nov 2018, 04:46

1

6

9,596

by: EMPOWERgmatRichC

27 Nov 2017, 12:42

ER

If x + y is an integer, is y an integer?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

jamifahad

18 Jul 2011, 05:10

6

3,351

by: Bunuel

06 Dec 2017, 00:45

ER

If x, y, and z are three integers, are they consecutive integers?

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

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

Bunuel

10 Dec 2017, 00:51

2

6

2,230

by: dineshril

14 Dec 2017, 11:26

ER

Is xy <= 6 ? (1) 1 <= x <= 2 and 4 <= y <= 6 (2) x + y = 7

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

16 Dec 2017, 01:46

3

6

2,673

by: exc4libur

18 Dec 2017, 03:06

ER

Is x/3 < x?

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

BillyZ

21 Mar 2017, 20:02

2

6

4,441

by: Bunuel

31 Dec 2017, 14:43

ER

What is the 999th term of the series S ? (1) The first four terms of S

605-655 (Medium) | Algebra, Sequences

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

Sajjad1994

06 Jan 2018, 14:22

5

6

5,866

by: NiruSinghal

16 Jan 2018, 23:28

ER

Of the 70 children who visited a certain doctor last week,

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

aiming4mba

17 Aug 2010, 09:57

5

6

3,773

by: bumpbot

22 Jan 2018, 04:58

ER

Is the tens digit of a two digit integer k divisible by 3?

605-655 (Medium) | Multiples and Factors

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

ananthpatri

06 Aug 2012, 00:21

5

6

6,773

by: bumpbot

24 Jan 2018, 23:28

ER

The number of people present at each level, except the topmost, of a

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PrepTap

05 Jun 2015, 04:45

11

6

2,858

by: Timebomb

24 Feb 2018, 05:10

ER

If a < b < c < d, is abcd > 0? (1) abc > 0 (2) bcd < 0

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

29 Dec 2016, 11:56

5

6

3,561

by: bumpbot

27 Feb 2018, 09:55

ER

What is the units digit of integer n?

555-605 (Medium) | Fractions and Ratios, Number Properties

555-605 (Medium) | Fractions and Ratios, Number Properties hide tags

Bunuel

26 Apr 2016, 00:59

2

6

4,034

by: SaGa

03 Mar 2018, 01:30

ER

On a number line, 0 < A < B, is |20 - A| < |20 -B| ?

805+ (Hard) | Absolute Values, Inequalities

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

Bunuel

26 Mar 2018, 23:10

7

6

2,561

by: chetan2u

12 Apr 2018, 00:00

ER

If p is a prime number, what is the value of p? (1) 10 < p - 3 < 16

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

13 Apr 2018, 01:16

2

6

1,516

by: Mo2men

14 Apr 2018, 12:42

ER

Is x- 2xy + y = 0?

605-655 (Medium) | Algebra, Number Properties

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

Bunuel

11 Oct 2016, 02:16

3

6

2,970

by: bumpbot

19 Apr 2018, 07:34

ER

Is wz(x + y) a negative even integer?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

17 Apr 2018, 05:41

2

6

1,638

by: manasveek

20 Apr 2018, 05:17

ER

Is the positive integer n divisible by 6?

655-705 (Hard) | Multiples and Factors

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

Bunuel

12 Nov 2014, 10:05

39

6

10,146

by: BrentGMATPrepNow

20 Apr 2018, 07:54

ER

The heights of a certain plant species are normally distributed. What

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

13 Apr 2018, 01:40

6

2,458

by: push12345

27 Apr 2018, 23:18

What is the remainder when X is divided by Y?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

amanvermagmat

03 May 2018, 07:49

5

6

3,636

by: amanvermagmat

03 May 2018, 22:38

ER

Is x < y ? (1) z < y (2) z < x

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

GMATD11

06 Apr 2011, 10:59

3

6

3,169

by: bumpbot

04 May 2018, 01:03

Bob plans to draw a square ABCD with a point O on the side AB but is

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

VenoMfTw

25 Aug 2015, 23:45

10

6

3,079

by: amanvermagmat

08 May 2018, 04:48

ER

Is (1 + 0.01r)(1 - 0.01s) > 1 ?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

13 Apr 2018, 01:24

1

6

1,921

by: chetan2u

07 Jun 2018, 09:51

ER

If a^x*b^y = 200, where a, b, x, y are positive integers, x + y = ?

805+ (Hard) | Algebra, Exponents

805+ (Hard) | Algebra, Exponents hide tags

Bunuel

14 Jun 2018, 21:13

5

6

2,184

by: Bob2018

15 Jun 2018, 09:42

ER

In a class 60% of the students wear glasses and 50% of the students ar

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failatmath

25 May 2018, 07:30

13

6

8,326

by: push12345

03 Jul 2018, 09:16

ER

If x and y are distinct positive integers

655-705 (Hard) | Algebra, Number Properties

655-705 (Hard) | Algebra, Number Properties hide tags

kingb

06 Nov 2012, 18:37

8

6

4,971

by: bumpbot

03 Jul 2018, 20:14

ER

A square is inscribed in a circle. What is the area of the circle?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

17 Apr 2018, 05:45

6

2,911

by: swagatamoitra

13 Jul 2018, 23:47

ER

A positive integer N is a six digit number of the form

655-705 (Hard) | Number Properties, Word Problems

655-705 (Hard) | Number Properties, Word Problems hide tags

amanvermagmat

08 Aug 2018, 22:43

8

6

2,055

by: amanvermagmat

16 Aug 2018, 10:42

A positive integer X is a six digit number of the form

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

amanvermagmat

08 Aug 2018, 22:46

10

6

2,394

by: shmba

17 Aug 2018, 07:48

ER

What is the value of odd positive integer m?

555-605 (Medium) | Multiples and Factors

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

Bunuel

13 Dec 2016, 11:11

6

2,509

by: KrishnakumarKA1

23 Aug 2018, 23:04

ER

How many factors does the number A have? 1) A is divisible by 43

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

GMATBusters

11 May 2018, 11:38

2

6

2,186

by: sumit411

28 Aug 2018, 08:43

ER

If p and q are distinct integers, is 4 a factor of p – q?

Sub 505 (Easy) | Multiples and Factors

Sub 505 (Easy) | Multiples and Factors hide tags

Bunuel

06 Nov 2016, 09:11

2

6

4,213

by: fskilnik

31 Aug 2018, 08:04

ER

If the largest possible cube with volume x is enclosed in a cylinder,

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

17 Sep 2018, 22:07

5

6

1,704

by: ayush93

19 Sep 2018, 14:35

ER

Is x^(k+1) > x^k?

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

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alphonsa

18 Aug 2014, 09:47

17

6

3,815

by: GyMrAT

20 Sep 2018, 23:10

ER

In the rectangle shown, if d = 10, what is x? (1) The perimeter of

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

18 Sep 2018, 22:04

6

2,196

by: ShankSouljaBoi

21 Sep 2018, 09:41

ER

A local hamburger restaurant is offering a promotion whereby

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

dzodzo85

03 May 2026, 12:16

5

6

6,163

by: bumpbot

29 Sep 2018, 06:00

ER

If a>b>0

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rheabiswal

01 Oct 2018, 21:38

1

6

1,853

by: rheabiswal

02 Oct 2018, 07:05

ER

What is the sum of unique roots of the quadratic equation

805+ (Hard) | Exponents

805+ (Hard) | Exponents hide tags

Nikhil

01 Dec 2018, 10:15

8

6

2,738

by: T1101

11 Dec 2018, 09:59