GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

176

15

78,657

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,480

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

487,874

by: bb

29 Aug 2025, 13:27

ER

Is arc ABC equal in length to arc DEF ? (1) AD⊥CF (2) AD and CF bis

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Bunuel

26 Jun 2020, 02:51

14

5

2,222

by: sambitspm

26 Jun 2020, 20:59

ER

If a and b are integers, is a + b odd? (1) a/b is odd (2) ab is even

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

22 Jun 2020, 02:45

4

3

2,623

by: sambitspm

26 Jun 2020, 21:11

ER

Q is a set of integers If Q contains more than 2 numbers, are all the

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

22 Jun 2020, 02:45

8

5

2,304

by: sambitspm

26 Jun 2020, 21:13

ER

If x < 200, what is the value of x?

Poor Quality

Poor Quality hide tags

Papist

27 Jun 2020, 00:10

2

4

1,781

by: mSKR

27 Jun 2020, 10:50

ER

Find the unit digit of 19^x + 27^y?

655-705 (Hard) | Exponents, Number Properties

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

GMATinsight

27 Jun 2020, 23:41

3

7

1,780

by: GMATinsight

28 Jun 2020, 00:39

ER

What is the value of x? (1) 1/x^2 = 1/16 (2) 1/2x = 1/8

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

Bunuel

25 Jun 2020, 10:43

4

1,267

by: vipulshahi

28 Jun 2020, 09:38

ER

If X and Y are positive integers, what is the remainder of

Sub 505 (Easy) | Remainders

Sub 505 (Easy) | Remainders hide tags

vivaslluis

13 Nov 2010, 10:10

9

6

4,650

by: jpujol1

28 Jun 2020, 09:56

ER

If x is a positive integer, does 6 divide evenly into x?

505-555 (Easy) | Multiples and Factors

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

Bunuel

19 Apr 2016, 03:11

8

6

3,942

by: TestPrepUnlimited

28 Jun 2020, 14:05

ER

If a and b are greater than 0, a is what percent greater than b?

Sub 505 (Easy) | Percent and Interest Problems

Sub 505 (Easy) | Percent and Interest Problems hide tags

coreyander

28 Jun 2020, 12:21

3

4

2,596

by: chetan2u

28 Jun 2020, 23:24

ER

Is x a positive integer?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

chetan2u

29 Jun 2020, 23:32

3

2

2,215

by: RaghavKhanna

30 Jun 2020, 00:09

ER

If a, b and c are positive, is ac > 5?

655-705 (Hard) | Algebra, Inequalities

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

Bunuel

14 Aug 2017, 02:02

11

5

3,385

by: bumpbot

30 Jun 2020, 03:06

ER

Mrs. Smith stores her homemade applesauce in glass jars of only two si

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

17 Jul 2018, 02:28

1

4

4,211

by: bumpbot

30 Jun 2020, 03:07

ER

If x is an integer, is x < 10? (1) 7x < 77 (2) 190 − 20x < 10

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

28 Jun 2020, 13:29

1

8

2,940

by: bM22

30 Jun 2020, 09:52

ER

Is x + y > 0? (1) xy > 0 (2) x^3y^2 > 0

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

Bunuel

14 May 2020, 08:15

2

5

2,397

by: satya2029

30 Jun 2020, 10:34

ER

What is the value of integer n ? (1) n(n + 1)(n + 2) = 120 (2) n! = 24

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

11 Sep 2017, 00:27

5

6

3,903

by: hardikjain

30 Jun 2020, 10:37

ER

The theatre made an arrangement with the acting company that

605-655 (Medium) | Algebra, Word Problems

605-655 (Medium) | Algebra, Word Problems hide tags

Reni

24 May 2014, 09:17

6

3

3,045

by: bumpbot

30 Jun 2020, 10:57

ER

If x and y are prime numbers, and a and b are positive integers, is x/

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Jun 2020, 01:56

9

11

3,858

by: Neha2404

30 Jun 2020, 22:20

ER

What is the value of b? (1) b(b - 8) = -16 (2) (b + 4)^2 = 64

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Jul 2020, 01:37

14

16

5,148

by: monikakumar

01 Jul 2020, 20:02

ER

If y < 0 < x, is x/y > -1?

705-805 (Hard) | Inequalities

705-805 (Hard) | Inequalities hide tags

BrentGMATPrepNow

02 Oct 2018, 14:48

10

2,894

by: bumpbot

02 Jul 2020, 00:14

ER

If in the figure above angle POS is 60°, what is the ratio of OP to OQ

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

Bunuel

11 Sep 2018, 03:07

7

2

2,020

by: bumpbot

02 Jul 2020, 07:44

ER

The cost of buying x units of a certain product is given by the

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

petu

05 Apr 2015, 08:45

11

3

3,352

by: Archit3110

02 Jul 2020, 08:19

ER

Is x > y? (1) 12x = 4c (2) c = 3y^4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

01 Jul 2020, 23:02

10

17

3,143

by: bidskamikaze

03 Jul 2020, 01:41

When the positive integer n is divided by 15, the remainder is 4. What

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

VERBAL1

03 Jul 2020, 11:12

4

2

2,247

by: v12345

03 Jul 2020, 19:29

ER

A bag contains 24 chips, each of which is black, blue, green, or red,

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

Bunuel

29 Apr 2018, 09:25

2

3,338

by: v12345

03 Jul 2020, 23:46

ER

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

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Russ19

21 Jun 2020, 10:20

4

3,014

by: hiranmay

04 Jul 2020, 07:23

ER

Each of the marbles in a jar is pink, blue, or purple. If one marble

Sub 505 (Easy) | Probability

Sub 505 (Easy) | Probability hide tags

CAMANISHPARMAR

29 Apr 2019, 21:55

4

2

2,738

by: v12345

04 Jul 2020, 22:41

ER

For 3 positive integers a, b & c, is c equal to the median?

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

gmat1393

17 Jan 2019, 10:14

5

2

2,231

by: bumpbot

05 Jul 2020, 16:47

ER

If x and y are positive integers, what is the value of x/y?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

11 Jun 2015, 03:57

8

5

5,474

by: bumpbot

05 Jul 2020, 16:56

ER

What is the value of x^2 – 5xy + 6y^2? (1) 3y - x = 0 (2) 2x - y = 0

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Russ19

07 Jul 2020, 00:59

3

2

1,746

by: IanStewart

07 Jul 2020, 05:32

ER

What is the value of x? (1) 5x + 10y = 65 (2) 130 – 20y = 10x

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

02 May 2019, 06:29

4

3

3,508

by: bumpbot

07 Jul 2020, 10:13

ER

If n is a positive integer with k digits. What is the value of n?

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

19 Dec 2016, 04:55

8

4

3,021

by: daniformic

07 Jul 2020, 15:32

ER

What is the area of isosceles triangle X?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

26 Jun 2015, 02:22

7

9

7,313

by: bumpbot

09 Jul 2020, 01:05

ER

Poll: Is xy < z? (1) xyz = 1 (2) xyz^2 > 1

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

Frank28

08 Jul 2020, 14:51

4

3,308

by: mSKR

09 Jul 2020, 09:58

ER

What is the value of x? (1) 2^x < 20

705-805 (Hard) | Exponents, Inequalities

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

abrutlag

05 Jul 2020, 10:50

5

9

1,958

by: Kinshook

09 Jul 2020, 10:30

ER

What is the value of integer x? (1) 2^x < 20 < 3^x (2) 2^(x + 1) < 20

555-605 (Medium) | Exponents, Inequalities

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

Bunuel

06 Jul 2020, 04:56

1

5

2,390

by: Kinshook

09 Jul 2020, 10:35

ER

If p and q are consecutive positive integers, is p a multiple of 3 ?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

metallicafan

13 Dec 2011, 09:51

5

6

4,066

by: bumpbot

09 Jul 2020, 19:54

ER

How many odd factors does the integer n have?

605-655 (Medium) | Algebra, Number Properties

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

firas92

03 Jun 2019, 00:27

18

7

4,476

by: gurmukh

10 Jul 2020, 09:20

ER

If k is an integer, is k^2 < 100?

605-655 (Medium) | Inequalities, Number Properties

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

GMATBusters

01 May 2020, 06:19

8

7

2,919

by: sampad

12 Jul 2020, 05:29

ER

Is the integer m a prime number? (1) 2m = 10 (2) 3 < m < 6

Sub 505 (Easy) | Number Properties

Sub 505 (Easy) | Number Properties hide tags

Bunuel

07 Apr 2020, 07:17

1

2

1,332

by: v12345

12 Jul 2020, 06:01

ER

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

805+ (Hard) | Absolute Values, Inequalities

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

GMATinsight

11 Jul 2020, 23:04

4

2

1,367

by: minustark

12 Jul 2020, 08:16

ER

If 3x - 3 - 4x = x - 7 - 2x + 4, then what is the value of x ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Sajjad1994

21 Mar 2020, 01:00

2

7

2,087

by: KaramveerBakshi

13 Jul 2020, 03:08

In the equation x^2 − cx + c = 0, c is a constant, and x is a variable

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

FridaElisa

06 Jul 2020, 00:00

9

3,789

by: FridaElisa

13 Jul 2020, 08:03

ER

Does the parabola y=mx^2+4mnx+4n, where m and n are constants, interse

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

TheUltimateWinner

12 Jul 2020, 08:16

1

2

1,701

by: mSKR

13 Jul 2020, 09:39

ER

What is the units digit of the positive integer x?

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

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

dracarys007

13 Jul 2020, 09:01

1

998

by: CrackverbalGMAT

13 Jul 2020, 10:02

ER

Is integer x divisible by 3? (1) When x is divided by 5, the remainder

555-605 (Medium) | Multiples and Factors, Remainders

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

Bunuel

03 Jun 2018, 11:21

3

4

2,975

by: bumpbot

13 Jul 2020, 14:13

ER

Cathy was born less than 10 years ago and Karen is at least 22 years

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

13 Jul 2020, 03:47

8

4

2,635

by: KaramveerBakshi

13 Jul 2020, 21:36

ER

If x/2 + y = z, what is the value of z ?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

Bunuel

25 Sep 2017, 00:08

3

5

2,169

by: bumpbot

14 Jul 2020, 07:48

ER

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

805+ (Hard) | Algebra

805+ (Hard) | Algebra hide tags

GMATBusters

11 Jul 2020, 19:16

19

16

2,502

by: Kinshook

14 Jul 2020, 10:17

ER

Can more than thirteen balls of radius R be fitted (without compressin

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Thelionking1234

12 Jul 2020, 05:19

7

5

5,321

by: Lipun

15 Jul 2020, 09:39

ER

In the figure above, ABCDEF is a regular hexagon with

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

anmolmakkarz17

01 Nov 2019, 10:42

13

5

5,626

by: KarishmaB

15 Jul 2020, 23:55