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

79,081

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

188,730

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

488,295

by: bb

29 Aug 2025, 13:27

ER

What is the value of x + y?

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

gmatfeelizzle

02 Apr 2013, 10:08

10

6

3,839

by: bumpbot

28 Jul 2021, 04:42

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Is |x| < 1 ?

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gmatgambler

06 Jan 2014, 03:12

9

5

4,318

by: Bunuel

30 Aug 2016, 10:18

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The total weight of all residents of Ranchville

555-605 (Medium) | Statistics and Sets Problems

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

gmatgambler

14 Jan 2014, 06:24

4

2

2,378

by: bumpbot

03 Oct 2020, 23:56

ER

For each customer, a yogurt shop charges a cents for the

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

gmatgambler

13 Jan 2014, 06:13

2

6

4,467

by: bumpbot

13 Jan 2022, 02:43

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If x is an integer, is x^3 divisible by 9?

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

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

gmatgambler

13 Jan 2014, 01:03

24

7

8,572

by: bumpbot

09 Dec 2022, 22:00

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If wxy ≠ 0, does x = y ?

705-805 (Hard) | Algebra

705-805 (Hard) | Algebra hide tags

gmatgambler

08 Dec 2013, 06:40

62

11

10,456

by: bumpbot

02 Jan 2024, 04:53

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In isosceles triangle RST what is the measure of angle R?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

gmatgg

08 Mar 2010, 22:46

214

15

106,374

by: bumpbot

23 Oct 2024, 03:48

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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

8,324

by: bumpbot

02 Aug 2023, 22:08

A clothing store sold a certain brand of shirts for X dollars each las

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

gmathero911

13 Apr 2024, 17:33

33

3

11,330

by: DonBosco7

29 Sep 2025, 22:14

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Of the members in a certain club, 70 percent are women. Is the average

605-655 (Medium) | Statistics and Sets Problems

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

gmathero911

13 Apr 2024, 17:40

71

6

10,523

by: Bunuel

20 Oct 2025, 10:04

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If w + z = 28, what is the value of wz?

Sub 505 (Easy) | Algebra, Arithmetic

Sub 505 (Easy) | Algebra, Arithmetic hide tags

GMAThirst

22 Mar 2013, 13:19

126

17

29,016

by: bumpbot

01 Mar 2025, 09:35

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Is the slope of Line L positive?

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

GMATinsight

23 Jul 2015, 07:03

6

3

3,428

by: bumpbot

06 May 2017, 06:53

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How many distinct Prime Factors does a^b^c has 1) a^b has three disti

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

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

GMATinsight

30 May 2017, 05:41

5

3

2,544

by: Bunuel

31 May 2017, 01:32

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What is the minimum possible radius of the circle C which has centre a

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATinsight

05 Jun 2017, 08:32

1

2,103

by: GMATinsight

06 Jun 2017, 03:47

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If the mean of the set S is 14 then find the Median of the set 1) Set

555-605 (Medium) | Statistics and Sets Problems

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

GMATinsight

10 Jun 2017, 04:34

1

1,315

by: pushpitkc

10 Jun 2017, 04:59

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Is a the common divisor of b and c? 1) a < b < c 2) a, b, c are conse

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

GMATinsight

16 Jun 2017, 06:56

1

1,704

by: RMD007

16 Jun 2017, 07:59

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If a and b are integers, Is b = 0? (1) a = ab – 1 (2) a is NOT equa

655-705 (Hard) | Algebra

655-705 (Hard) | Algebra hide tags

GMATinsight

03 Oct 2017, 00:35

1

2

1,627

by: Nikkb

03 Oct 2017, 00:52

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Is the area of the triangle ABC ≥ 24 ? 1) Two of the Sides of the tri

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

08 Oct 2017, 21:36

1

1,713

by: jedit

08 Oct 2017, 21:56

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Is x+y divisible by 2? 1) There are 25 integers between x and y 2) x

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

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

GMATinsight

14 Nov 2017, 02:36

2

1,542

by: amanvermagmat

14 Nov 2017, 08:48

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If the Perimeter of Quadrilateral ABCD is P then find P? 1) The maxim

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

18 Nov 2017, 05:33

5

2

2,527

by: amanvermagmat

27 Nov 2017, 23:34

ER

CMAT scores are calculated as per the following rule 1) Raw score is c

505-555 (Easy) | Fractions and Ratios +2 tags

505-555 (Easy) | Fractions and Ratios, Number Properties, Word Problems hide tags

GMATinsight

17 Dec 2017, 06:50

3

2,465

by: roykabir772

17 Dec 2017, 07:48

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If x < 20, How many distinct factors does odd number x have? 1) 16x

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

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

GMATinsight

23 Jan 2018, 03:58

7

17

4,089

by: amanvermagmat

23 Jan 2018, 23:19

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Is x is divisible by 25? (1) x^2 is a multiple of 50 (2) x^3 is

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

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

GMATinsight

05 Feb 2018, 07:11

4

3

1,441

by: jrk23

05 Feb 2018, 08:28

ER

If l and w represent the length and width, respectively, of the rectan

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATinsight

09 Sep 2015, 11:35

5

4

3,425

by: BillNella89

01 Mar 2018, 05:31

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Is S.D. of Set B < S.D. of Set A?

505-555 (Easy) | Statistics and Sets Problems

505-555 (Easy) | Statistics and Sets Problems hide tags

GMATinsight

09 Mar 2018, 11:31

2

1,273

by: MathRevolution

12 Mar 2018, 13:11

ER

Is the area of the circle circumscribing triangle ABC less than 25π?

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

GMATinsight

24 Feb 2018, 00:51

3

7

2,209

by: cruiseav

13 May 2018, 09:26

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Is positive integer x a prime number? (1) x^2 +x ≤ 10 (2) x does not

605-655 (Medium) | Algebra +2 tags

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

GMATinsight

09 May 2018, 00:26

3

5

2,108

by: AD2GMAT

14 May 2018, 10:08

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Is a > b ? (1) |a|/|b| > 1 (2) |a - b| < |a|

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

GMATinsight

23 Dec 2017, 06:40

1

3

1,585

by: blueviper

29 May 2018, 01:13

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If x < 50, Is Positive Integer x a Prime Number? 1) When x is divided

555-605 (Medium) | Multiples and Factors +2 tags

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

GMATinsight

08 Jun 2018, 04:22

1

1,453

by: KSBGC

08 Jun 2018, 07:59

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Is area of the triangle ABC greater than 24? 1) Two of the Sides of t

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

03 Jul 2018, 06:50

1

1,384

by: PKN

03 Jul 2018, 08:54

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Is C square of an Integer? 1) Sum of the factors of integer C is ODD

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

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

GMATinsight

27 Apr 2018, 01:46

1

3

1,666

by: shmba

22 Aug 2018, 17:55

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If n is a positive integer. Is n^3-n divisible by 24? 1) 2n has twice

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

GMATinsight

15 May 2017, 04:05

4

2

3,035

by: bumpbot

08 Sep 2018, 06:00

ER

Set A and Set B both include 10 distinct terms. Is Standard deviation

505-555 (Easy) | Statistics and Sets Problems

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GMATinsight

08 Nov 2018, 06:48

3

2

1,282

by: vishalkazone

08 Nov 2018, 09:34

ER

A new students joins a class, which has average weight 40 kg. By what

555-605 (Medium) | Statistics and Sets Problems

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GMATinsight

08 Nov 2018, 06:59

6

4

2,290

by: storm1327

13 Nov 2018, 22:43

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Is a > b? 1) a*b < 1 2) a/b < 1 Source: www.GMATinsight.com

655-705 (Hard) | Inequalities

655-705 (Hard) | Inequalities hide tags

GMATinsight

02 Feb 2019, 06:30

4

5

1,237

by: GMATinsight

03 Feb 2019, 00:04

ER

How many elements are there in Set A? 1) Frequency of each element in

605-655 (Medium) | Statistics and Sets Problems

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

GMATinsight

05 Oct 2017, 07:08

2

2,201

by: shuvodip04

18 Mar 2019, 00:00

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In a right triangle PQR, right angled at vertex P, find angle R 1) PR

555-605 (Medium) | Geometry

555-605 (Medium) | Geometry hide tags

GMATinsight

05 May 2019, 07:32

2

1,405

by: GMATinsight

05 May 2019, 21:20

ER

Is Area of the Triangle ABC ≥ 24? 1) Two sides of the triangle are 6

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

GMATinsight

03 Dec 2017, 02:40

2

5

1,926

by: bumpbot

26 May 2019, 02:07

ER

Is the positive Integer x a perfect square? 1) Sum of all factors of

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

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

GMATinsight

19 Jan 2018, 07:30

6

3,534

by: CrackverbalGMAT

03 Sep 2019, 23:22

ER

The Given figure is a sector of a Circle with Centre at point O

605-655 (Medium) | Geometry

605-655 (Medium) | Geometry hide tags

GMATinsight

18 Jun 2015, 10:56

9

8

3,305

by: bumpbot

11 Oct 2019, 20:14

ER

Are the distinct Integers of Set {a, b, c, d, e} consecutive? 1) The

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GMATinsight

26 Oct 2018, 20:54

10

6

2,310

by: chetan2u

25 Oct 2019, 05:28

ER

If A and B are different points on graph x^2 + y^2 = 25 then what is

655-705 (Hard) | Coordinate Plane

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GMATinsight

12 Oct 2017, 10:57

8

2

2,012

by: bumpbot

09 Dec 2019, 00:56

ER

Is standard deviation of Set A > the standard deviation of Set B? 1)

555-605 (Medium) | Statistics and Sets Problems

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

GMATinsight

11 Aug 2018, 22:47

17

16

5,209

by: bumpbot

28 Dec 2019, 08:57

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Is a > b? 1) a/b > 1 2) b/a < 1 Source: www.GMATinsight.com

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

GMATinsight

29 Jan 2018, 07:05

5

2

1,505

by: bumpbot

22 Jan 2020, 08:32

ER

If x is a positive integer then find x? (1) x^2−5x+6=0 (2) x^2=3x

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

GMATinsight

28 Jan 2020, 00:00

1

1,043

by: sujoykrdatta

28 Jan 2020, 00:55

ER

Find the value of Integer x? 1) x is the factor of product of first f

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

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

GMATinsight

31 Jan 2020, 06:56

1

2

1,545

by: ccooley

31 Jan 2020, 19:08

ER

Is a/b a terminating decimal? 1) a is a multiple of 3 2) b is a facto

555-605 (Medium) | Multiples and Factors

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

GMATinsight

03 Mar 2020, 00:47

2

1,247

by: TestPrepUnlimited

03 Mar 2020, 09:23

ER

What was the median annual salary of the employees at Company P last y

555-605 (Medium) | Statistics and Sets Problems

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

GMATinsight

08 Apr 2020, 00:48

1

1,701

by: GMATBusters

08 Apr 2020, 00:58

ER

Find area of a right triangle with one vertex at the origin and a side

555-605 (Medium) | Coordinate Plane

555-605 (Medium) | Coordinate Plane hide tags

GMATinsight

11 Apr 2020, 03:58

2

4

1,010

by: shameekv1989

11 Apr 2020, 07:55

ER

If a*b*c≠0, Is a*b^2*c^3 > 0? 1) a^b >0 2) b^c > 0

555-605 (Medium) | Exponents, Inequalities

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

GMATinsight

18 Apr 2020, 07:20

7

2

1,651

by: Archit3110

18 Apr 2020, 09:39