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

179

15

79,697

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of April 2026

1, 2

Bunuel

01 Jan 2026, 05:45

858

24

188,975

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

488,673

by: bb

29 Aug 2025, 13:27

Is the highest common factor of (a,b) less than 10? 1) HCF (a,64)=4 2)

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

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

TheUltimateWinner

30 Jun 2019, 08:36

5

2

1,505

by: bumpbot

09 May 2024, 18:23

ER

Set S and T have 100 numbers, respectively. Is standard deviation of S

655-705 (Hard) | Statistics and Sets Problems

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

PriyankaPalit7

18 Mar 2019, 11:15

5

2

2,983

by: bumpbot

13 May 2024, 22:12

ER

In the fall semester, Mr. Rodriguez’s, Ms. Vangala’s, and Mr. Hollande

805+ (Hard) | Fractions and Ratios, Word Problems

805+ (Hard) | Fractions and Ratios, Word Problems hide tags

Bunuel

29 Dec 2020, 23:02

5

3

1,804

by: bumpbot

17 May 2024, 06:16

ER

Three liquids, A, B and C, are formed by mixing petrol and spirit in

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

21 May 2024, 01:30

5

4

1,170

by: prantorboni

21 May 2024, 06:58

ER

Of the blue-chip stocks analyzed in a recent study, 30 percent both

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

30 May 2024, 01:30

5

2

1,126

by: arkaja11

30 May 2024, 12:57

ER

In a country, 45% of male citizen and 47% of female citizen are eligib

705-805 (Hard) | Probability

705-805 (Hard) | Probability hide tags

Bunuel

26 Jul 2022, 01:30

5

3

2,303

by: stne

30 May 2024, 22:33

ER

X, Y and Z were the only candidates in a certain election. If Y and Z

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

03 Jun 2024, 01:30

5

3

1,123

by: Rucha.Shukla

03 Jun 2024, 04:14

ER

If a, b, and c are positive numbers, what is the value of a + b + c ?

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

31 Dec 2022, 03:40

5

2

1,778

by: bumpbot

08 Jun 2024, 06:59

ER

What is the value of x^2 - 4y^2?

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

derekgmat

08 Nov 2012, 03:13

5

4

5,068

by: bumpbot

09 Jun 2024, 19:32

ER

If a 0, is b < a < c ? (1) b < |a| < c (2) |b| < |a| < |c|

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

03 Feb 2020, 05:01

5

3

3,901

by: bumpbot

10 Jun 2024, 05:24

ER

If machine X ran continuously at a uniform rate to fill a production

555-605 (Medium) | Work and Rate Problems

555-605 (Medium) | Work and Rate Problems hide tags

Bunuel

13 Jun 2024, 01:30

5

4

1,525

by: PranavVyas

13 Jun 2024, 09:18

ER

How many cylindrical cans with a radius of 2 inches and a height of 6

705-805 (Hard) | Geometry

705-805 (Hard) | Geometry hide tags

Bunuel

19 Jan 2022, 09:59

5

4

2,080

by: Ami0Trafalgar

14 Jun 2024, 05:38

ER

x is a positive integer such as 4,095<x<4,105. What is x?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

22 Feb 2023, 02:29

5

3

1,468

by: Bisleri

16 Jun 2024, 06:47

ER

A certain amount of goods are purchased for 300 $. What is the percent

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

10 Jun 2024, 01:30

5

1,537

by: KarishmaB

16 Jun 2024, 22:11

ER

What is the value of x ? (1) 6x - 9y = 24 (2) 1.5y = x - 4

555-605 (Medium) | Algebra

555-605 (Medium) | Algebra hide tags

Bunuel

15 Feb 2023, 04:51

5

2,821

by: bumpbot

17 Jun 2024, 06:59

ER

If Hans purchased a pair of skis and a ski jacket, what was the cost

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

16 Dec 2014, 05:22

5

3

7,867

by: bumpbot

18 Jun 2024, 03:34

ER

What was the percent increase in the earnings per share of company

505-555 (Easy) | Percent and Interest Problems

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

Bunuel

20 Jun 2024, 01:30

5

3

1,649

by: HarishD

20 Jun 2024, 10:46

ER

Some students planned a picnic and decided to divide cost of food

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

24 Jun 2024, 01:30

5

2

1,581

by: HarishD

24 Jun 2024, 04:52

ER

How many people swam in a certain swimming pool last week?

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

25 Jun 2024, 01:30

5

3

1,398

by: HarishD

26 Jun 2024, 01:01

ER

A customer purchased 6 shirts priced at $10.99 each, excluding sales

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

23 May 2020, 04:18

5

3

6,553

by: KarishmaB

27 Jun 2024, 02:25

ER

Is x an integer? (1) x^2 is an integer (2) 2*x is an integer

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

QuantMadeEasy

12 Feb 2020, 00:14

5

2

2,029

by: bumpbot

30 Jun 2024, 00:52

ER

A and B are the sets shown above. Another set C also has a total of 4

705-805 (Hard) | Combinations

705-805 (Hard) | Combinations hide tags

Bunuel

21 Jul 2022, 01:30

5

6

2,842

by: bumpbot

03 Jul 2024, 15:56

ER

Is y^4 < x^2y^2 ? (1) x < y (2) y < 0

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

19 Apr 2023, 10:15

5

9

2,194

by: unraveled

04 Jul 2024, 09:47

ER

If each marble in a set of 50 marbles is either red, black, or white

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

05 Jul 2024, 01:30

5

3

1,702

by: HarishD

05 Jul 2024, 06:32

ER

If x = 300 y z, what is the value of x ? (1) y = (x + z)/2

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

Bunuel

23 Mar 2022, 02:30

5

3

3,076

by: Bunuel

05 Jul 2024, 13:24

ER

If 2x + 3y = 5, what is the value of x ?

Sub 505 (Easy) | Algebra

Sub 505 (Easy) | Algebra hide tags

jlgdr

01 Oct 2013, 15:25

5

3

10,915

by: bumpbot

13 Jul 2024, 01:39

ER

If m > n, then is (p + q + 7)^2 > (p - q - 7)^2 if m = p + q

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

sherlocked221B

18 Jul 2024, 04:04

5

2

792

by: stne

19 Jul 2024, 09:58

A shop sells small photo frames for $10 a piece, and large photo frame

555-605 (Medium) | Arithmetic, Word Problems

555-605 (Medium) | Arithmetic, Word Problems hide tags

amanvermagmat

08 Dec 2018, 22:14

5

2

1,932

by: bumpbot

19 Jul 2024, 16:30

ER

If R is set of 15 consecutive integers, is the integer 10 in R?

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Bunuel

20 Mar 2023, 10:45

5

3

2,140

by: Bunuel

23 Jul 2024, 23:57

ER

If n = s^a*t^b, where a, b, s and t are integers, is n an integer?

805+ (Hard) | Number Properties

805+ (Hard) | Number Properties hide tags

Bunuel

16 Jun 2023, 04:00

5

2

1,522

by: bumpbot

25 Jul 2024, 21:02

ER

If x is a positive integer, is x a multiple of 3?

705-805 (Hard) | Algebra, Multiples and Factors

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

TBT

12 Mar 2023, 10:09

5

3

2,720

by: bumpbot

26 Jul 2024, 01:51

ER

Bill runs a hot dog stand, and at the end of the day he has collected

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

23 Mar 2022, 06:00

5

2

4,290

by: bumpbot

28 Jul 2024, 11:49

ER

What is the remainder when X is divided by 3, where 3 is not

655-705 (Hard) | Multiples and Factors, Remainders

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

ConnectTheDots

10 Apr 2014, 00:05

5

6

3,758

by: samarpan.g28

30 Jul 2024, 06:58

ER

Two players Lampard and Essien had a certain number of chocolates with

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

30 Jul 2024, 01:30

5

2

1,212

by: Nidzo

31 Jul 2024, 01:37

Marvin bought video games at a standard price of $40 per video game.

505-555 (Easy) | Arithmetic

505-555 (Easy) | Arithmetic hide tags

amanvermagmat

05 Jun 2018, 11:11

5

2

2,622

by: bumpbot

14 Aug 2024, 21:43

ER

A three digit number, Z, has the product of its digits as 48. what is

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

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

chetan2u

07 Jan 2016, 03:36

5

4

2,857

by: bumpbot

15 Aug 2024, 10:50

ER

If c > 0, is (a + c)/(b + c) > a/b ?

605-655 (Medium) | Inequalities

605-655 (Medium) | Inequalities hide tags

Bunuel

25 Feb 2020, 03:30

5

3

1,586

by: bumpbot

15 Aug 2024, 14:16

ER

If n is a positive integer, is n^3 - n divisible by 24?

805+ (Hard) | Multiples and Factors

805+ (Hard) | Multiples and Factors hide tags

Bunuel

20 Mar 2022, 03:00

5

7

4,800

by: bumpbot

16 Aug 2024, 03:58

ER

Of the four jars A, B, C, and D, does at least one jar has three or

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

22 Aug 2024, 01:31

5

2

1,155

by: Krunaal

22 Aug 2024, 07:44

ER

There are least 50 museums in City X that are open on Tuesdays. If 20

705-805 (Hard) | Word Problems

705-805 (Hard) | Word Problems hide tags

Bunuel

23 Aug 2024, 01:30

5

1

1,060

by: Nidzo

23 Aug 2024, 02:04

ER

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

555-605 (Medium) | Absolute Values, Inequalities

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

Bunuel

31 Mar 2023, 08:45

5

4

1,803

by: bumpbot

26 Aug 2024, 02:23

ER

What is the value of x - y ? (1) (x - y)^5=32 (2) |x - y| = 2

Sub 505 (Easy) | Absolute Values, Algebra

Sub 505 (Easy) | Absolute Values, Algebra hide tags

Bunuel

27 Mar 2023, 09:30

5

2

1,937

by: bumpbot

26 Aug 2024, 02:29

ER

Is x is an integer? (1) x^2/2 is an integer (2) x^(1/2) is an integer

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

27 Feb 2023, 07:45

5

3

2,838

by: bumpbot

28 Aug 2024, 04:32

ER

What percent of 16 is m? (1) m is 5 percent of 10. (2) 400 percent of

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

07 Nov 2022, 02:30

5

2

3,500

by: bumpbot

28 Aug 2024, 05:50

ER

The elements of Set X are defined by the formula...

505-555 (Easy) | Statistics and Sets Problems

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

GMATUser1928843

26 Jun 2022, 13:34

5

3

1,479

by: bumpbot

29 Aug 2024, 22:07

ER

What is the value of x? (1) |x+2| 4 (2) |x - 1| = 2x - 3

655-705 (Hard) | Absolute Values, Inequalities

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

nafuzzz

30 Aug 2024, 13:31

5

1

960

by: Bunuel

30 Aug 2024, 13:45

ER

If a, b, c and d are positive integers, is d odd? (1) a/b=2c (2) a/c

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

20 Jan 2023, 02:30

5

3

2,314

by: bumpbot

04 Sep 2024, 10:18

ER

If the greatest common factor of two integers is 28 and the least comm

505-555 (Easy) | Multiples and Factors

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

Bunuel

08 Dec 2016, 13:59

5

4

3,329

by: pancakeprotein

04 Sep 2024, 19:16

ER

Is q < 0?

655-705 (Hard) | Arithmetic

655-705 (Hard) | Arithmetic hide tags

Mo2men

28 Dec 2018, 21:46

5

3

3,043

by: bumpbot

07 Sep 2024, 08:58

Is the positive integer n divisible by 108?

555-605 (Medium) | Multiples and Factors

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

Atankshu

22 Nov 2020, 11:51

5

3,862

by: bumpbot

07 Sep 2024, 10:59