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

80,092

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

189,076

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

488,827

by: bb

29 Aug 2025, 13:27

ER

If each of the students in a certain mathematics class is

505-555 (Easy) | Probability

505-555 (Easy) | Probability hide tags

udaymathapati

23 Aug 2010, 08:54

17

4

15,220

by: bumpbot

15 Apr 2023, 21:01

ER

Is 2^a*2^b < 4 ? (1) a + b < 1 (2) a + b > 0

505-555 (Easy) | Exponents, Inequalities

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

Bunuel

19 Mar 2023, 07:30

1

1,131

by: hinasingh

15 Apr 2023, 10:01

ER

If triangle ABC is an isosceles triangle

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

mikemcgarry

05 Nov 2012, 12:37

9

11

10,843

by: bumpbot

13 Apr 2023, 23:43

ER

If ▢ and △ represent digits, is the 5-digit number 14,2▢△ divisible

505-555 (Easy) | Multiples and Factors

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

Bunuel

23 May 2020, 08:47

22

8

7,630

by: bumpbot

13 Apr 2023, 05:22

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What is the median of integers a, b, and c? (1) ab = 0 (2) bc = 0

505-555 (Easy) | Statistics and Sets Problems

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

TheUltimateWinner

02 Sep 2019, 02:52

1

2

1,650

by: bumpbot

11 Apr 2023, 03:31

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Is a positive integer n a multiple of 12 (1) n is a multiple of 6

505-555 (Easy) | Multiples and Factors

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

Bunuel

10 Apr 2023, 09:45

1

881

by: gmatophobia

10 Apr 2023, 13:11

ER

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

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

10 Apr 2023, 01:30

2

1,517

by: hinasingh

10 Apr 2023, 03:28

ER

Is x > y? (1) x^2 > y^2 (2) |x| > |y|

505-555 (Easy) | Absolute Values, Inequalities

505-555 (Easy) | Absolute Values, Inequalities hide tags

Supermaverick

14 Jul 2017, 14:48

3

5

2,885

by: bumpbot

09 Apr 2023, 16:44

ER

If x, y, and z are positive integers, is x + y divisible by 2?

505-555 (Easy) | Multiples and Factors

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

Bunuel

29 Mar 2023, 02:45

2

1,490

by: RICHA1189

08 Apr 2023, 03:09

ER

If x 0, is x*y = 0? (1) y = z (2) x = y + z

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

23 May 2022, 09:53

1

4

1,910

by: SaquibHGMATWhiz

07 Apr 2023, 06:18

ER

A sewing store buys fabric X by the at the wholesale price. If each

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

GMATBusters

12 Nov 2018, 09:54

8

4

5,195

by: bumpbot

05 Apr 2023, 09:18

ER

A pizza recipe calls for cheese and flour in the ratio of 2 grams to 1

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

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

Bunuel

31 May 2016, 02:44

14

5

6,959

by: bumpbot

05 Apr 2023, 04:40

ER

If 8 skiers raced down a course multiple times in one day, and each

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

28 Jul 2016, 05:17

2

5

3,323

by: bumpbot

05 Apr 2023, 01:51

ER

If x and y are positive integers, is x divisible by y?

505-555 (Easy) | Multiples and Factors

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

Bunuel

14 Mar 2023, 09:45

1

1,314

by: $!vakumar.m

04 Apr 2023, 11:10

ER

Is the positive integer p a multiple of 50?

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

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

Bunuel

28 Feb 2016, 08:23

20

9

11,617

by: bumpbot

04 Apr 2023, 09:31

ER

If the price of a gallon of milk and a loaf of bread both increased by

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

07 Jul 2015, 02:49

1

9

6,150

by: bumpbot

03 Apr 2023, 20:26

ER

In the rectangular coordinate system, lines L1 and L2 intersect at poi

505-555 (Easy) | Coordinate Plane

505-555 (Easy) | Coordinate Plane hide tags

Bunuel

05 Jan 2022, 08:00

7

2

2,478

by: bumpbot

03 Apr 2023, 06:14

ER

If A and B are two different points on a number line, is 0 between A

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

03 Apr 2023, 01:30

2

1

1,697

by: SaquibHGMATWhiz

03 Apr 2023, 04:33

ER

What is the value of 2x - y? (1) x + y = 12 (2) x - y = 4

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

10 Oct 2019, 23:15

1

3

5,106

by: bumpbot

02 Apr 2023, 13:16

ER

What is the perimeter of isosceles triangle MNP?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

14 Jun 2012, 03:13

69

6

38,241

by: bumpbot

01 Apr 2023, 07:10

ER

If m/n = 7/4, what is the value of m + n ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

06 Aug 2017, 07:46

5

6

3,070

by: bumpbot

30 Mar 2023, 12:40

ER

What is the largest of three consecutive even integers?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

30 Mar 2023, 10:45

4

1

1,015

by: kguduri

30 Mar 2023, 11:30

ER

What is the value of 4x + 18 ? (1) 2x + 9 = 14 (2) 8x + 18 = 38

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

30 Mar 2023, 01:30

4

3

1,318

by: Rabab36

30 Mar 2023, 05:45

ER

What is the units digit of positive integer y?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

28 Mar 2023, 01:30

2

3

1,343

by: gmatophobia

29 Mar 2023, 08:15

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

13,221

by: bumpbot

28 Mar 2023, 14:15

ER

What is the units digit of 4^n?

505-555 (Easy) | Exponents, Number Properties

505-555 (Easy) | Exponents, Number Properties hide tags

Bunuel

15 Apr 2016, 01:13

1

3

4,330

by: bumpbot

24 Mar 2023, 12:36

ER

Is quadrilateral MNPQ a rectangle?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

dheeraj24

03 Jul 2014, 04:45

8

10

8,432

by: Bunuel

23 Mar 2023, 09:20

ER

At a certain school, 2/3 of the students have a driver's license.

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

23 Mar 2023, 01:30

1

1,089

by: $!vakumar.m

23 Mar 2023, 02:51

ER

In the equation X^2+bX+12=0

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

evgeniailyina2018

14 Jun 2020, 01:00

6

4

2,498

by: obahr

22 Mar 2023, 04:32

ER

Each of the 600 elements of Set X is a distinct integer. How many of

505-555 (Easy) | Number Properties, Word Problems

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

Bunuel

21 Mar 2023, 01:30

1

1,189

by: $!vakumar.m

21 Mar 2023, 02:20

ER

In a survey of 120 people, how many own an automobile?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

16 Mar 2023, 01:30

2

1,491

by: whalenz

19 Mar 2023, 06:39

ER

What is the width of MN of rectangle MNOP?

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

Bunuel

31 Jan 2016, 07:22

2

5

2,726

by: bumpbot

17 Mar 2023, 10:54

ER

In a survey, each of 6 students indicated the number of years of work

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

17 Mar 2023, 01:30

1

1,294

by: bv8562

17 Mar 2023, 03:44

ER

If m and n are integer, what is the value of n ? (1) 2^m*5^n = 8/25 (

505-555 (Easy) | Exponents

505-555 (Easy) | Exponents hide tags

Bunuel

14 Mar 2023, 09:15

1

1,130

by: stne

16 Mar 2023, 13:01

ER

At Oliveri's candy store, Brand X chocolate is sold by the ounce and B

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

15 Sep 2021, 09:30

2

4

1,466

by: bumpbot

16 Mar 2023, 02:57

ER

Mark’s net income equals his salary less taxes. By what percent did Ma

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

28 Apr 2021, 03:30

1

2

2,040

by: bumpbot

15 Mar 2023, 06:31

ER

What is the value of 1/x + 1/y + 1/z ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

20 Feb 2018, 23:26

2

4

3,543

by: bumpbot

12 Mar 2023, 12:28

ER

For positive integers p, q, and r, what is the ratio of p to the sum

505-555 (Easy) | Fractions and Ratios

505-555 (Easy) | Fractions and Ratios hide tags

Bunuel

10 Mar 2023, 02:30

2

1,647

by: $!vakumar.m

10 Mar 2023, 12:17

ER

If x#0, is 1/x + 1/y = 4 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

buguy7

31 May 2013, 05:56

5

3

3,139

by: bumpbot

08 Mar 2023, 09:08

ER

If x and y are integers, does 2xy = x^2+y^2 ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

06 Mar 2023, 02:30

1

1,217

by: bv8562

08 Mar 2023, 05:52

ER

How many members of Group G are less than 25 years of age?

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

07 Feb 2020, 06:21

4

5

4,157

by: Bunuel

08 Mar 2023, 05:02

ER

If r and s are two positive numbers, what is the value of r/s ?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Bunuel

07 Mar 2023, 02:30

1

1,404

by: Maria240895chile

07 Mar 2023, 08:47

ER

Of a faculty of 90 high school teachers, how many have masters degrees

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

10 Apr 2018, 04:44

3

1,849

by: bumpbot

07 Mar 2023, 04:38

ER

Is x < 4? (1) x^3 < 8 (2) (x^2)^(1/2) = 2

505-555 (Easy) | Inequalities

505-555 (Easy) | Inequalities hide tags

Bunuel

27 Feb 2023, 02:30

2

1

1,136

by: Archit3110

06 Mar 2023, 04:46

ER

In the triangle above, DC is parallel to AB. What is the len

505-555 (Easy) | Geometry

505-555 (Easy) | Geometry hide tags

danzig

05 Mar 2023, 09:46

11

3

5,197

by: Bunuel

05 Mar 2023, 09:51

ER

If a and b are positive integers, is a/b = 2/3 ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

25 Oct 2022, 01:30

2

1

1,144

by: RICHA1189

02 Mar 2023, 11:47

ER

What is the value of p?

505-555 (Easy) | Absolute Values, Algebra

505-555 (Easy) | Absolute Values, Algebra hide tags

LokeshB

23 Dec 2021, 02:09

12

14

7,544

by: bumpbot

28 Feb 2023, 12:17

ER

What is the value of p? (1) p is an integer (2) 20 < p < 16/3

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

Bunuel

06 Feb 2023, 02:30

3

6

2,287

by: $!vakumar.m

28 Feb 2023, 10:36

ER

Each day for 25 days, the number of people who used a certain library

505-555 (Easy) | Statistics and Sets Problems

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

Bunuel

21 Feb 2023, 01:30

1

2,230

by: $!vakumar.m

28 Feb 2023, 03:32

ER

What is the total profit or loss to the shopkeeper in the sale of a mi

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

21 Jan 2020, 04:55

1

3

3,053

by: bumpbot

26 Feb 2023, 19:01