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

78,802

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

856

24

188,572

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

488,001

by: bb

29 Aug 2025, 13:27

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

23 Sep 2018, 21:30

34

5

18,707

by: KanikaJain

21 Oct 2024, 02:02

ER

If xy 0, what is the value of (x^4*y^2- (xy)^2)/(x^3*y^2)

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

GMATBusters

08 Feb 2024, 01:14

20

7

6,588

by: KanikaJain

21 Oct 2024, 01:29

ER

Is |a| + |b| > |a + b| ?

655-705 (Hard) | Absolute Values, Inequalities

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

chiragatara

04 Dec 2012, 01:57

80

16

32,063

by: bumpbot

20 Oct 2024, 06:21

ER

If a and b are positive integers, what is the remainder when 9^2a+b

555-605 (Medium) | Multiples and Factors

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

benejo

05 Apr 2018, 06:32

12

6

2,624

by: bumpbot

20 Oct 2024, 06:13

ER

HOT Competition 27 Aug/8PM: If k is a positive integer, is k^(1/2) an

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

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

Bunuel

27 Aug 2020, 20:00

50

8

8,434

by: bumpbot

20 Oct 2024, 06:01

ER

What is the value of x? (1) 3(x - 1) = y + 3x (2) (x + 2)(y + 3) = 0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Carcass

29 Jun 2021, 09:49

53

5

10,781

by: bumpbot

19 Oct 2024, 09:27

ER

If p and q are positive integers, can the fraction p/q be expressed as

655-705 (Hard) | Multiples and Factors

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

Bunuel

29 Aug 2019, 06:44

7

4

2,493

by: Bunuel

18 Oct 2024, 08:52

ER

What was the number of defective batteries in a shipment of

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

patanahi

31 Mar 2012, 11:42

11

8

7,743

by: bumpbot

16 Oct 2024, 12:08

ER

The coordinates of points A and B are p, q and (r, s). Is |q| > |s|?

655-705 (Hard) | Absolute Values +2 tags

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

Bunuel

25 Jul 2017, 22:47

19

6

5,185

by: bumpbot

16 Oct 2024, 03:32

ER

Is integer x even? (1) 3x is even (2) x/3 is not odd

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

QuantMadeEasy

13 Oct 2024, 11:08

2

5

964

by: QuantMadeEasy

15 Oct 2024, 22:14

ER

Does ab= a^2

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

jsphcal

18 Dec 2012, 22:51

18

8

8,335

by: bumpbot

15 Oct 2024, 21:28

ER

In the morning, Chris drives from Toronto to Oakville and in the eveni

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

Bunuel

18 Aug 2015, 01:48

182

14

12,989

by: bumpbot

14 Oct 2024, 23:18

ER

In a sequence S, each term, after first term,

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

fitzpratik

20 Mar 2019, 20:25

25

3

6,168

by: bumpbot

12 Oct 2024, 04:40

ER

Is ABCD a square? (1) AB is parallel to CD (2) ABCD is an equilateral

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

08 Feb 2018, 05:51

20

4

6,313

by: bumpbot

11 Oct 2024, 23:02

ER

What percent of Firm XYZ's budget will be spent on legal exp

655-705 (Hard) | Percent and Interest Problems

655-705 (Hard) | Percent and Interest Problems hide tags

Archit143

16 Dec 2012, 11:55

13

6

4,803

by: bumpbot

10 Oct 2024, 11:28

ER

The product of integers a, b, c, and d is 120. What is the value of in

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

17 Sep 2015, 01:16

16

12

5,300

by: bumpbot

10 Oct 2024, 09:45

ER

What percentage of families in the state have annual incomes over $50

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

30 Apr 2026, 10:59

19

4

6,530

by: pierjoejoe

10 Oct 2024, 03:57

ER

Is |x + 1| > 6? (1) (x - 2)(|x| - 5) > 0 (2) x^2 < 4

705-805 (Hard) | Absolute Values, Inequalities

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

EgmatQuantExpert

09 Oct 2024, 00:06

58

9

11,419

by: bumpbot

08 Oct 2024, 23:13

ER

What is the remainder when x is divided by 3?

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

Bunuel

25 Sep 2024, 00:26

13

8

8,931

by: pierjoejoe

07 Oct 2024, 07:21

ER

If the sum of five integers is 875, what is the product of these

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

sidinsin

23 Oct 2023, 04:25

6

4

5,800

by: pierjoejoe

07 Oct 2024, 02:31

ER

If pqr s is a four-digit number, where p, q, r and s are the digits,

805+ (Hard) | Fractions and Ratios, Multiples and Factors

805+ (Hard) | Fractions and Ratios, Multiples and Factors hide tags

Bunuel

06 Aug 2017, 01:02

70

11

28,880

by: Mihirrr009

07 Oct 2024, 01:35

ER

For a positive integer x, what is the remainder when 3^x+1 is divided

555-605 (Medium) | Exponents +2 tags

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

MathRevolution

18 Jan 2017, 02:08

8

5

4,285

by: BrushMyQuant

06 Oct 2024, 06:46

ER

Is n/14 an Integer? 1) 3n/14 is an Integer 2) 2n/14 is an Integer So

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

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

GMATinsight

19 Oct 2018, 07:17

8

6

2,527

by: bumpbot

05 Oct 2024, 22:22

ER

Is x > y? (1) x/4 = y^2 (2) x > 1

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

jayoptimist

29 Jul 2012, 11:21

62

7

11,415

by: bumpbot

03 Oct 2024, 14:27

ER

If n is a positive integer, what is the tens' digit of 7^n?

655-705 (Hard) | Exponents, Number Properties

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

akshayuberoi

02 Mar 2021, 20:53

9

3

2,392

by: BrushMyQuant

03 Oct 2024, 07:51

ER

p and q are positive integers. Is p^2 - q^2 divisible by 24?

705-805 (Hard) | Multiples and Factors

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

sherxon

09 Jun 2021, 01:02

5

3

2,829

by: Bunuel

02 Oct 2024, 06:14

ER

What is the greatest common divisor of positive integers m

505-555 (Easy) | Multiples and Factors, Number Properties

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

eybrj2

29 Mar 2012, 00:38

64

6

19,442

by: bumpbot

01 Oct 2024, 03:25

ER

In a poll, 400 users were asked why they revisited a certain website.

Sub 505 (Easy) | Overlapping Sets

Sub 505 (Easy) | Overlapping Sets hide tags

Bunuel

03 Jun 2018, 11:24

4

3

5,155

by: bumpbot

01 Oct 2024, 02:36

ER

What percent of the students at Jefferson High School study

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

thinktank

23 Mar 2013, 12:32

22

7

19,751

by: bumpbot

01 Oct 2024, 01:54

ER

A cube is painted with blue and red color such that each color is pain

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

pran21

02 Sep 2014, 04:05

18

6

22,041

by: bumpbot

30 Sep 2024, 04:42

ER

If n is an integer, what is the units digit of x?

605-655 (Medium) | Exponents, Fractions and Ratios

605-655 (Medium) | Exponents, Fractions and Ratios hide tags

ferrarih

30 Jun 2012, 08:00

60

6

11,112

by: bumpbot

30 Sep 2024, 01:47

ER

A farmer has a total of 60 pigs, cows, and horses on his farm. How

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 Oct 2015, 06:29

12

4

11,469

by: bumpbot

28 Sep 2024, 07:49

ER

If q is an integer, then q is divisible by how many positive

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

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

notrandom

04 Nov 2013, 23:05

19

6

4,665

by: bumpbot

26 Sep 2024, 02:20

ER

If both x and y are positive integers that are divisible by

655-705 (Hard) | Multiples and Factors

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

Berbatov

17 Sep 2012, 08:24

18

16

13,947

by: bumpbot

24 Sep 2024, 21:36

ER

If x and y are positive integers, is the product xy even ?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

krishan

29 Jan 2009, 05:47

131

12

45,212

by: bumpbot

24 Sep 2024, 11:59

ER

A certain circular area has its center at point P and has

555-605 (Medium) | Coordinate Plane, Geometry

555-605 (Medium) | Coordinate Plane, Geometry hide tags

vigneshpandi

21 Sep 2010, 23:05

86

10

20,156

by: bumpbot

24 Sep 2024, 06:17

ER

A Town T has 40,000 residents, 25 percent of whom are age 60

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

enigma123

26 Feb 2012, 17:43

14

6

8,897

by: bumpbot

24 Sep 2024, 03:49

ER

If x and y are positive integers and x>y, is (x-y)^3+(3y+1)^5 odd?

705-805 (Hard) | Number Properties

705-805 (Hard) | Number Properties hide tags

akshayuberoi

14 Mar 2021, 11:16

8

4

2,246

by: AT1982

23 Sep 2024, 18:46

ER

Of the birds in a particular aviary, 30 are both spotted and

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

xhimi

11 Dec 2013, 03:47

25

8

18,584

by: bumpbot

23 Sep 2024, 10:19

ER

a and b are non zero integers. if |a| +|b| = 8, what is the value of

605-655 (Medium) | Absolute Values

605-655 (Medium) | Absolute Values hide tags

Rushilkhera

25 Jun 2016, 23:26

8

4,236

by: bumpbot

22 Sep 2024, 23:32

ER

What is the value of x^2 + 2xy + y^2 ? (1) x + y = 7 (2) x = 2

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

19 Sep 2022, 06:45

2

3

2,676

by: Bunuel

21 Sep 2024, 07:11

ER

What is the remainder when a positive integer t is divided by 15?

655-705 (Hard) | Remainders

655-705 (Hard) | Remainders hide tags

akurathi12

06 Jan 2019, 04:25

18

5

5,909

by: bumpbot

19 Sep 2024, 00:44

ER

If the sum of three integers is even, is the product of the three

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

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

Bunuel

10 Aug 2017, 04:39

12

11

9,510

by: bumpbot

18 Sep 2024, 12:18

ER

SliceCo, a company that sells knives, is structured so that each of it

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

bumpbot

17 Jun 2019, 08:24

9

8

3,693

by: bumpbot

18 Sep 2024, 11:26

ER

A shelf contains hardcover and paperback books, of either fiction or n

705-805 (Hard) | Overlapping Sets

705-805 (Hard) | Overlapping Sets hide tags

Bunuel

16 Feb 2015, 06:45

27

5

9,852

by: bumpbot

17 Sep 2024, 06:31

ER

All attendees at a university gathering are faculty or alumni of the u

605-655 (Medium) | Overlapping Sets

605-655 (Medium) | Overlapping Sets hide tags

Bunuel

24 Sep 2015, 22:57

18

6

5,773

by: bumpbot

17 Sep 2024, 04:32

ER

A list kept at Town Hall contains that town's average daily temperatur

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Jun 2015, 02:34

34

10

9,676

by: bumpbot

16 Sep 2024, 07:39

ER

If P and Q are each circular regions, what is the radius of

Sub 505 (Easy) | Geometry

Sub 505 (Easy) | Geometry hide tags

Bunuel

14 Feb 2014, 02:07

22

10

15,509

by: bumpbot

16 Sep 2024, 06:29

ER

If x, y, and z are integers, is x + y^2 + 3z >= 0 ?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

praveenvino

22 Jan 2022, 12:12

6

8

7,901

by: bumpbot

15 Sep 2024, 21:53

ER

Is the standard deviation of set X greater than the standard deviation

655-705 (Hard) | Statistics and Sets Problems

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

BrentGMATPrepNow

26 Sep 2021, 07:07

24

3

5,125

by: Bunuel

15 Sep 2024, 13:14