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

79,258

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

858

24

188,855

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

488,480

by: bb

29 Aug 2025, 13:27

ER

if a^2 * a^b = a^z ,

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

GMATBusters

11 Jul 2020, 19:16

19

16

2,524

by: Kinshook

14 Jul 2020, 10:17

ER

If x is an even integer, is x divisible by 6?

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

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

chetan2u

14 Jan 2018, 06:04

19

13

4,072

by: Basshead

05 Nov 2020, 16:27

ER

Is x + y > 1?

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

TheUltimateWinner

26 Oct 2017, 03:07

19

11

3,455

by: ism1994

17 Nov 2020, 00:25

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If x+y=10^15, where x and y are positive integers, y=? (1) The sum of

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

MBA20

10 May 2019, 10:56

19

2

2,860

by: chetan2u

04 Dec 2020, 08:31

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If x is the product of integers a, b, c, and d, is x divisible by 128?

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

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

Bunuel

29 Jan 2015, 08:24

19

10

7,571

by: WizakoVignesh

05 Jan 2021, 06:45

ER

When positive integer y is divided by 51, the remainder is x. What is

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

20 Apr 2016, 01:02

19

9

5,260

by: bumpbot

28 Jan 2021, 14:25

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If P and Q are positive integers, is P divisible by 12?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

Bunuel

08 Feb 2021, 01:15

19

11

12,143

by: GMATBusters

23 Jun 2021, 07:27

ER

Are the digits A and B consecutive integers?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

chetan2u

28 Jun 2020, 04:41

19

15

3,326

by: Crytiocanalyst

17 Sep 2021, 10:35

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What is the radius of the circle shown?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

PathFinder007

02 Aug 2014, 10:24

19

10

13,728

by: bumpbot

05 Jan 2022, 19:50

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If a < b, is a > 0? (1) a^2 < b^2 (2) a^2 < ab < b^2

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Bunuel

10 Aug 2018, 03:21

19

10

6,423

by: bumpbot

16 Apr 2022, 06:03

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In the xy-plane, the equation of line l is 5x + 6y = 90. Does the

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

PKN

12 Aug 2018, 09:10

19

5

3,849

by: Kushchokhani

19 Apr 2022, 06:43

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A circle is inscribed in a quadrilateral ABCD such a way that it touch

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

Bunuel

01 May 2020, 03:17

19

3

4,268

by: bumpbot

04 Jul 2022, 21:24

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The 2-digit positive integer x has the property that it is divisible

655-705 (Hard) | Multiples and Factors

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

Bunuel

15 Jun 2018, 23:33

19

11

5,699

by: bumpbot

25 Jul 2022, 06:20

ER

If n and y are positive integers and n represents the number of differ

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

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

Bunuel

26 Jan 2015, 05:43

19

15

4,869

by: bumpbot

26 Jul 2022, 17:14

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Is xyz > 0 ? (1) xy > 0 (2) yz > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

MathRevolution

29 Sep 2016, 06:22

19

9

8,472

by: bumpbot

15 Aug 2022, 17:21

ER

If the average (arithmetic mean) of six different numbers is 25, how m

605-655 (Medium) | Number Properties, Statistics and Sets Problems

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

Bunuel

12 Nov 2014, 09:48

19

5

11,926

by: bumpbot

22 Sep 2022, 13:27

ER

A student is entering in a college housing lottery for 2

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

iGMATUSA

23 Oct 2012, 07:37

19

14

9,664

by: bumpbot

15 Oct 2022, 15:54

ER

If y > x, is y > 64 (1) x has 7 factors (all even but one) and is div

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Distance and Speed Problems hide tags

Bunuel

21 Jan 2020, 04:40

19

7

3,057

by: bumpbot

05 Nov 2022, 08:41

ER

Is 10m > 5n - k?

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

07 Mar 2016, 08:57

19

7

6,668

by: bumpbot

09 Nov 2022, 03:26

ER

John buys only chocolates and cookies from the market. Was the total

705-805 (Hard) | Arithmetic +2 tags

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

chetan2u

24 Feb 2016, 20:05

19

6

2,897

by: bumpbot

13 Nov 2022, 03:44

ER

What is the greatest common factor of positive integers x an

555-605 (Medium) | Multiples and Factors

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

enigma123

31 Dec 2013, 03:53

19

8

11,068

by: bumpbot

08 Dec 2022, 03:17

ER

If s^4*v^3*x^7 < 0 , is svx < 0? 1) v < 0 2) x >

605-655 (Medium) | Exponents, Inequalities

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

rahulms

22 Jan 2010, 05:33

19

10

10,397

by: Bunuel

12 Jan 2023, 12:23

ER

If a, b, and c are positive integers, what is the greatest common divi

555-605 (Medium) | Multiples and Factors

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

Bunuel

21 Dec 2018, 06:01

19

7

5,384

by: bumpbot

12 Feb 2023, 19:38

ER

In the figure above, segments RS and TU represent two

805+ (Hard) | Geometry

805+ (Hard) | Geometry hide tags

joylive

16 Oct 2012, 05:15

19

8,725

by: bumpbot

22 Feb 2023, 01:24

ER

What is the units digit of positive integer x?

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

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

Bunuel

27 Apr 2016, 23:34

19

11

7,193

by: bumpbot

24 Feb 2023, 21:56

ER

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

6,362

by: bumpbot

13 Mar 2023, 09:53

ER

Is x^2 greater than x ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Carcass

13 Feb 2013, 16:45

19

8

5,976

by: bumpbot

14 Mar 2023, 12:50

ER

Lines P, Q and R are parallel to each other.Is the slope ok

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

GMATBaumgartner

16 Oct 2012, 23:49

19

9

13,215

by: bumpbot

28 Mar 2023, 14:15

ER

What is the value of 1/(x^2 - y^2) - 1/(x^2 + 2xy + y^2) ?

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

14 Nov 2014, 09:53

19

6

6,085

by: KCL5728

17 Apr 2023, 08:52

ER

If a is an integer, what is the units digit of a^18?

655-705 (Hard) | Exponents

655-705 (Hard) | Exponents hide tags

anceer

25 Nov 2014, 21:48

19

7

5,562

by: bumpbot

18 Apr 2023, 05:25

ER

What is the X intercept of non horizontal line m? (1) The slope of m

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

Bunuel

24 Mar 2022, 01:30

19

4

3,428

by: bumpbot

22 Apr 2023, 12:25

ER

A rectangle is plotted on the standard coordinate plane,

605-655 (Medium) | Coordinate Plane, Geometry

605-655 (Medium) | Coordinate Plane, Geometry hide tags

JenniferClopton

03 Dec 2010, 11:19

19

15

6,884

by: bumpbot

06 May 2023, 00:45

ER

Is the length of rectangular field F greater than the length of rectan

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

26 Apr 2019, 07:16

19

6

10,094

by: bumpbot

08 May 2023, 06:52

ER

Is integer x positive?

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

shekar123

02 Aug 2010, 16:47

19

17

9,783

by: bumpbot

16 May 2023, 13:52

ER

If x, y and z are integers and x – y – z < 0, is

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

BrentGMATPrepNow

22 Mar 2017, 10:52

19

12

3,827

by: gmatophobia

28 May 2023, 22:23

ER

In the triangle above, does a^2 + b^2 = c^2 ?

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

03 Jan 2014, 06:20

19

7

17,652

by: bumpbot

03 Jun 2023, 10:34

ER

Is a < b? (1) a^3 = ab (2) |b| > |a|

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

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

Bunuel

14 Jun 2018, 21:07

19

7

2,973

by: bumpbot

06 Jun 2023, 05:04

ER

Is |1 - 4k| > k? (1) k > 4x^3 (2) k < 2x x^2 - 2

805+ (Hard) | Absolute Values, Inequalities

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

BrentGMATPrepNow

02 Nov 2018, 08:32

19

6

3,859

by: HoudaSR

16 Jun 2023, 18:43

ER

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

655-705 (Hard) | Absolute Values, Inequalities

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

gmatgrl

22 Mar 2016, 02:06

19

10

8,332

by: bumpbot

02 Aug 2023, 22:08

ER

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

655-705 (Hard) | Algebra, Inequalities

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

rxs0005

05 Jan 2011, 11:23

19

7

8,429

by: bumpbot

04 Aug 2023, 19:43

ER

Xavier and Adam are riding motorcycles down the highway at constant

555-605 (Medium) | Distance and Speed Problems

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

Bunuel

11 Apr 2017, 22:54

19

6

3,591

by: bumpbot

25 Aug 2023, 05:32

ER

In an interview for a certain job, 120 candidates appeared and two que

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

02 Jul 2020, 00:15

19

7

5,526

by: bumpbot

11 Sep 2023, 01:15

ER

Is the product ny greater than 0 ? (1) n is between –1 and 1. (2) y

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

taniad

10 Oct 2018, 03:15

19

8

19,076

by: bumpbot

18 Sep 2023, 17:02

ER

For positive integers x and y, x^y*8^3=2(10^8). What is the value of y

705-805 (Hard) | Exponents, Number Properties

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

Bunuel

08 Feb 2017, 09:17

19

5

5,308

by: bumpbot

30 Sep 2023, 09:49

ER

If w, x, y, and z are all positive numbers, then what is the value of

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

Bunuel

04 Nov 2019, 03:17

19

2

4,545

by: bumpbot

01 Oct 2023, 00:47

ER

In x-y plane, does parabola y=ax^2+bx+c intersect to x-axis?

605-655 (Medium) | Coordinate Plane

605-655 (Medium) | Coordinate Plane hide tags

itisSheldon

06 Mar 2018, 11:40

19

4

6,279

by: bumpbot

07 Oct 2023, 13:09

ER

How many integers n are there such that a > n > b ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

25 Nov 2014, 08:27

19

8

5,602

by: bumpbot

18 Oct 2023, 09:56

ER

If q is a positive integer, is p*q/q^(1/2) an integer?

555-605 (Medium) | Algebra, Number Properties

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

ravsg

24 Oct 2023, 09:10

19

1

11,155

by: Bunuel

24 Oct 2023, 09:09

ER

If BC = BD, what is the length of BC?

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

ind23

12 Apr 2014, 11:27

19

4

9,495

by: bumpbot

28 Oct 2023, 12:31

ER

How long does it take a particular jet to fly from its base

555-605 (Medium) | Distance and Speed Problems, Word Problems

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

guygmat

20 Jun 2011, 21:10

19

10

6,403

by: bumpbot

30 Oct 2023, 01:56