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

176

15

78,662

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,481

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

487,878

by: bb

29 Aug 2025, 13:27

ER

X, Y, Z and W are all integers and X*Y*Z*W= -1. What is the value of (

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nick1816

03 May 2019, 06:33

1

7

2,779

by: chetan2u

03 May 2019, 09:33

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The average of 3 different integers p, q and r (p<q<r)

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nick1816

29 Apr 2019, 08:07

3

4,281

by: Hal90

03 May 2019, 03:58

ER

If the closing price of stock X on the first trading day last year

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

nick13

01 Nov 2023, 15:20

65

10

11,812

by: Bunuel

13 Apr 2026, 04:43

ER

Last month a certain store purchased computers, some for $600 each and

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

nick13

05 Mar 2024, 00:00

57

10

12,933

by: bumpbot

20 Jan 2026, 10:09

ER

Ken bought a shirt at a price of D dollars, to which a sales tax of p

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

nick13

16 Sep 2024, 07:44

92

9

17,313

by: ManishaPrepMinds

14 Jul 2025, 02:51

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A sandwich shop offers a sandwich menu, a soup menu, and a salad menu.

805+ (Hard) | Combinations

805+ (Hard) | Combinations hide tags

nick13

07 Oct 2023, 15:56

126

14

18,720

by: GMATGuruNY

17 May 2025, 15:47

ER

Is z an integer?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

nfr007

24 Jan 2014, 02:27

15

11

7,971

by: Archit3110

16 Oct 2025, 10:02

ER

How long does it take Lee to type a certain document?

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

nfr007

26 Mar 2026, 19:45

12

8

6,528

by: bumpbot

03 Oct 2023, 14:08

ER -1

Kevin rented a car for a cost of c dollars

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

NextstopISB

02 Apr 2025, 10:29

5

3

2,058

by: Shubham2599jain

19 Jan 2026, 13:33

ER

What contains more calories: a gram of refined wheat.

655-705 (Hard) | Fractions and Ratios

655-705 (Hard) | Fractions and Ratios hide tags

NextstopISB

18 Apr 2025, 10:23

4

3

1,472

by: Bunuel

25 Sep 2025, 01:58

A safety inspector is surveying 12 buildings for safety

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

NextstopISB

18 May 2025, 10:53

2

4

1,150

by: Nikkz99

08 Jun 2025, 19:59

ER

If JNS Thermal Power Plant operates all 7 days a week

Sub 505 (Easy) | Statistics and Sets Problems

Sub 505 (Easy) | Statistics and Sets Problems hide tags

NextstopISB

23 Apr 2025, 10:07

2

752

by: HarshavardhanR

23 Apr 2025, 20:01

ER

Can n/196 be an integer?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Newman2019

03 Jul 2018, 11:26

5

3

1,681

by: Bunuel

03 Jul 2018, 23:07

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If m and n are integers and x>0, what is value of x^m + x^n?

505-555 (Easy) | Algebra, Exponents

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

newbornmuse

20 Jun 2014, 05:23

51

11

14,596

by: bumpbot

09 Mar 2025, 05:49

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

Sub 505 (Easy) | Inequalities

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newbornmuse

23 Jun 2014, 20:49

1

4

4,180

by: Bunuel

22 May 2023, 22:12

ER

Is x = -4 ?

555-605 (Medium) | Absolute Values

555-605 (Medium) | Absolute Values hide tags

nevilpat1

15 Sep 2014, 11:25

6

8

5,164

by: bumpbot

08 Jun 2024, 21:26

ER

Is x = 4 ? (1) (x^2)^(1/2) = 4 (2) |x| = -x

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

nevilpat1

01 Oct 2021, 06:26

12

9

4,276

by: chetan2u

01 Oct 2021, 04:43

ER

Is the slope of Line K positive ?

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

nevilpat1

08 Sep 2014, 10:50

2

3,423

by: SalahT

25 Sep 2021, 05:34

ER

If a loan of P dollars, at an interest rate of r percent...

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

NeverSurrender

11 Oct 2013, 03:29

292

19

62,932

by: bumpbot

19 Aug 2025, 07:37

ER

In a retail store, the average (arithmetic mean) sale for month M was

605-655 (Medium) | Statistics and Sets Problems

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

Nevernevergiveup

06 Mar 2023, 00:11

103

9

18,274

by: bumpbot

05 Apr 2026, 04:21

ER

In the first year of a pyramid scheme, John convinced y of his friend

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Nevernevergiveup

26 Sep 2016, 10:06

22

6

5,889

by: Bunuel

15 Sep 2025, 04:21

ER

At a certain auto dealership, 500 cars were sold last week.

805+ (Hard) | Min-Max Problems

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Nevernevergiveup

27 Jul 2016, 05:04

52

10

8,673

by: bumpbot

08 Jan 2025, 01:15

ER

How many positive factors does the positive integer x have?

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

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

Nevernevergiveup

26 Dec 2015, 03:12

29

9

11,988

by: bumpbot

20 Apr 2024, 06:51

ER

Is x > 0? (2) x^2 = 9x (2) |x| = -x

555-605 (Medium) | Absolute Values +2 tags

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

Nevernevergiveup

07 Apr 2016, 12:46

36

15

10,390

by: bumpbot

05 May 2023, 08:01

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Nevernevergiveup

15 Dec 2015, 08:00

9

7

3,841

by: bumpbot

12 Sep 2022, 09:15

ER

What is the value of k?

655-705 (Hard) | Algebra, Inequalities

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

Nevernevergiveup

25 Sep 2016, 06:52

31

10

9,241

by: bumpbot

31 Jul 2022, 09:12

ER

x is a positive integer and (x − 1) is prime. Is x a prime number?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Nevernevergiveup

26 Dec 2015, 04:13

6

8

5,836

by: bumpbot

19 Apr 2022, 07:22

ER

If p, x, and y are positive integers, y is odd, and p = x^2

805+ (Hard) | Multiples and Factors +2 tags

805+ (Hard) | Multiples and Factors, Number Properties, Remainders hide tags

1, 2

netcaesar

14 Aug 2009, 12:49

835

29

57,167

by: gmatchile

11 Aug 2025, 00:22

ER

During a one day sale, a store sold each sweater of a certain type for

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

netcaesar

12 Dec 2018, 05:06

114

17

44,596

by: bumpbot

08 Mar 2025, 08:25

ER

If x, y and z are nonzero numbers is xz = 12 ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

netcaesar

31 Jan 2014, 07:41

9

4

11,169

by: bumpbot

05 Jun 2023, 12:07

ER

Bill and Sam both rode their bikes from their school to the public

505-555 (Easy) | Distance and Speed Problems

505-555 (Easy) | Distance and Speed Problems hide tags

nemix

03 Jan 2013, 10:09

7

5

8,037

by: bumpbot

15 Jan 2022, 14:30

ER

How many computers did Michael, a salesman for the computer

605-655 (Medium) | Percent and Interest Problems

605-655 (Medium) | Percent and Interest Problems hide tags

nelz007

01 Nov 2012, 02:12

4

2

5,768

by: chetan2u

23 Dec 2017, 09:03

ER

Is xy < 12? (1) x < 4 and y < 3 (2) x^2 < 121 and y^2 < 4

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

neiln413b

06 Jul 2018, 07:27

2

3

2,107

by: CAMANISHPARMAR

07 Jul 2018, 08:40

ER

Is xy > 0? (1) |3 - x| < x + 5 (2) |2 - 2y| < y - 1

555-605 (Medium) | Absolute Values, Inequalities

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

nehapahuja29

06 Aug 2020, 09:18

17

9

4,654

by: bumpbot

28 Dec 2023, 11:09

ER

If p and q are positive integers, is every factor of p a fac

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

neha24

21 Apr 2013, 06:07

9

3

5,700

by: Bunuel

21 Oct 2021, 01:52

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

6,041

by: bumpbot

29 Jan 2024, 11:16

ER

Two chefs, Chef Andrew and Chef Bonnie, were hired to prepare a dinner

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

neeti1813

19 Sep 2014, 19:43

24

8

14,485

by: bumpbot

29 May 2023, 16:41

ER

Did it take Pei more than 2 hours to walk a distance of 10 miles along

605-655 (Medium) | Distance and Speed Problems

605-655 (Medium) | Distance and Speed Problems hide tags

1, 2

neeraj.kaushal

08 May 2008, 20:28

211

20

48,247

by: bumpbot

27 Jan 2026, 05:34

ER

Juan bought some paperback books that cost $8 each and some

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

1, 2

neeraj.kaushal

29 Jun 2013, 06:13

147

28

43,169

by: bumpbot

05 Jul 2025, 09:04

ER

If N is a positive integer, is N! divisible by 14 ?

605-655 (Medium) | Multiples and Factors

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

neelesh

10 Sep 2014, 04:27

31

6

9,858

by: bumpbot

09 May 2023, 04:15

ER

What is the remainder when the two-digit, positive integer x is divide

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

nechets

14 Dec 2013, 06:14

232

18

51,757

by: bumpbot

27 May 2025, 11:41

What is the value of x? (1) x = -1, 1 (2) x = 1, 2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

neadhs

10 Jun 2018, 00:15

1

3

1,560

by: push12345

19 Jul 2018, 04:27

ER

The table above shows the results of a survey of 100 voters who each r

805+ (Hard) | Overlapping Sets

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Nayyar29

12 Jun 2024, 23:55

31

3

5,538

by: bumpbot

05 Jan 2026, 09:53

ER

Is n < 0 ? (1) m < n (2) -n < m

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

nayasnayas

17 Apr 2022, 02:04

11

7

14,787

by: RastogiSarthak99

06 Jun 2022, 05:06

ER

Is the median of three numbers x, y, z equal to y?

655-705 (Hard) | Statistics and Sets Problems

655-705 (Hard) | Statistics and Sets Problems hide tags

Navneetsingh

29 Oct 2019, 08:36

19

14

5,383

by: whatsinthename1

06 Dec 2025, 00:24

ER

A certain bank charges a maintenance fee on a standard checking accoun

505-555 (Easy) | Percent and Interest Problems

505-555 (Easy) | Percent and Interest Problems hide tags

naveenhv

06 May 2011, 10:17

8

4

10,960

by: bumpbot

19 Jul 2022, 03:00

ER

If perpendicular lines m and n intersect at (0,b) in the

555-605 (Medium) | Coordinate Plane

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nave

20 Oct 2013, 04:56

331

9

60,677

by: bumpbot

13 Feb 2025, 03:34

ER

In the diagram above, the fourteen rectangular tiles are all

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

nave

04 Feb 2014, 03:22

84

10

20,827

by: Ritik25

26 Jun 2023, 12:24

ER

If r is a prime number and s is a positive integer, is

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

naumyuk

20 Jan 2016, 04:52

5

4

2,375

by: Bunuel

10 Apr 2017, 05:10

The temperature was measured once daily for 400 days. On 76% of these

805+ (Hard) | Arithmetic, Statistics and Sets Problems

805+ (Hard) | Arithmetic, Statistics and Sets Problems hide tags

natmyrrha

23 Jun 2019, 02:08

26

4

3,993

by: bumpbot

04 Jul 2022, 17:16