GMAT Data Sufficiency (DS) Forum - Free Practice Questions

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

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Bunuel

25 Oct 2022, 08:11

189

15

89,315

by: thisisakr

16 Apr 2026, 11:46

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100 Hardest and easiest questions for DS as of June 2026

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1, 2

Bunuel

01 Jan 2026, 05:45

873

24

194,363

by: bumpbot

16 Sep 2025, 06:05

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DS Question Directory by Topic and Difficulty

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bb

23 Aug 2026, 13:03

1.6k

1

496,587

by: bb

23 Aug 2026, 13:01

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

655-705 (Hard) | Statistics and Sets Problems

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PriyankaPalit7

18 Mar 2019, 11:15

5

2

3,042

by: bumpbot

13 May 2024, 22:12

Jason has more shirts than his brother. How many shirts does Jason hav

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

19 Sep 2017, 01:21

6

3

2,319

by: bumpbot

13 May 2024, 16:56

ER

What is the total value of Company H's stock?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Jasonammex

24 Aug 2011, 00:48

10

9

18,982

by: bumpbot

13 May 2024, 13:18

In a hotel with single rooms and double rooms, what is the probability

555-605 (Medium) | Probability

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Bunuel

15 Oct 2019, 02:25

7

4

3,725

by: bumpbot

13 May 2024, 11:59

ER

During a 7-year period the profits of Midas, Inc. changed by

555-605 (Medium) | Percent and Interest Problems

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ankithakhu

28 Mar 2010, 01:57

19

12

7,197

by: bumpbot

13 May 2024, 10:25

If 5 percent of the personnel stationed at army base M are officers

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

13 May 2024, 01:30

2

1,428

by: unraveled

13 May 2024, 08:36

ER

Sam leaves Town X at 9 am and drives due north at 50 mph towards Town

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

04 May 2017, 05:10

25

8

6,995

by: bumpbot

13 May 2024, 02:54

ER

Alan and Peter are cycling at different constant rates on a

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

summer101

11 May 2015, 03:34

33

10

10,319

by: bumpbot

13 May 2024, 01:01

ER

Carlotta can drive from her home to her office by one of two

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

seabhi

24 Feb 2014, 06:56

23

4

19,165

by: bumpbot

12 May 2024, 23:21

ER

In a sequence k, each term after the second term is the sum

505-555 (Easy) | Sequences

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NoHalfMeasures

11 Aug 2014, 03:29

32

10

15,383

by: bumpbot

12 May 2024, 11:54

Set A: {x, x, x, y, y, y, 3x+y, x-y}

705-805 (Hard) | Statistics and Sets Problems

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BrentGMATPrepNow

01 Nov 2016, 07:56

9

4

6,786

by: bumpbot

12 May 2024, 05:31

ER

How old will Fred be in 3 years?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

BrentGMATPrepNow

26 Jun 2018, 07:34

6

3

3,502

by: bumpbot

12 May 2024, 03:33

What is the rate of interest per annum at which sum of money is invest

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

10 May 2024, 01:30

4

2

1,384

by: GmatTest2026

12 May 2024, 01:29

ER

At least one pencil is distributed to each of the 19 students. Did at

705-805 (Hard) | Word Problems

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BillyZ

23 Mar 2017, 00:20

10

5

3,405

by: bumpbot

11 May 2024, 04:45

ER

In the x-y plane, y = f(x) = ax^2+bx+c passes through (1,0) an

805+ (Hard) | Functions and Custom Characters

805+ (Hard) | Functions and Custom Characters hide tags

MathRevolution

06 Jul 2018, 01:43

22

4

3,149

by: bumpbot

10 May 2024, 09:16

ER

In the former Soviet Union, rubles came in denominations of

805+ (Hard) | Word Problems

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Vijayeta

27 Jul 2014, 07:50

45

6

7,771

by: bumpbot

10 May 2024, 07:57

ER

Set A and Set B each contain three whole numbers ranging from 1 to 10.

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

27 Nov 2014, 07:51

16

7

4,946

by: bumpbot

10 May 2024, 03:39

A survey was made of 100 students who study German, French and Japanes

555-605 (Medium) | Overlapping Sets

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Bunuel

14 Jun 2022, 23:15

2

1,525

by: bumpbot

09 May 2024, 18:07

ER

Is the average of x consecutive integers divisible by 3? 1) The media

705-805 (Hard) | Number Properties, Statistics and Sets Problems

705-805 (Hard) | Number Properties, Statistics and Sets Problems hide tags

GMATinsight

13 Mar 2021, 02:50

13

2

1,945

by: jager

09 May 2024, 12:14

ER

Each candle in a particular box is either round or square and either

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

09 May 2024, 01:30

8

4

1,872

by: Nidzo

09 May 2024, 04:44

A certain medical insurance company sold two types of policies

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

09 May 2024, 01:30

2

1

1,023

by: Nidzo

09 May 2024, 04:10

ER

What is Joe's age (in years)?

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

BrentGMATPrepNow

10 Jun 2017, 13:58

12

4

5,048

by: bumpbot

09 May 2024, 04:07

ER

Pamela and Joe invested some money at annual simple interest

505-555 (Easy) | Percent and Interest Problems

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

GMATBaumgartner

17 Oct 2012, 02:08

27

8

11,197

by: bumpbot

09 May 2024, 03:59

In the xy-plane, a circle C is drawn with center at (1, 2) and radius

805+ (Hard) | Coordinate Plane +2 tags

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ktzsikka

13 Nov 2021, 08:11

21

8

8,298

by: Kinshook

08 May 2024, 16:03

The total income of Mr. Teng in the years 2003, 2004, and 2005 was $36

505-555 (Easy) | Word Problems

505-555 (Easy) | Word Problems hide tags

Bunuel

08 May 2024, 01:30

1

1,225

by: Nidzo

08 May 2024, 04:51

ER

Jumbo Circus charges the same admit fee for each person irrespective

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

GMATBusters

09 May 2020, 18:52

9

10

3,647

by: bumpbot

08 May 2024, 00:18

Set C is a set of positive integers where 4 is least. If the average

705-805 (Hard) | Statistics and Sets Problems

705-805 (Hard) | Statistics and Sets Problems hide tags

Bunuel

05 Oct 2017, 05:01

4

2,134

by: bumpbot

07 May 2024, 14:07

The number of cats in Libbys house is twice the number of dogs and on

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 May 2024, 01:30

1

1,233

by: rahuljsaxena

07 May 2024, 09:35

In a factory, there are workers, executives, and clerks. How many

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

07 May 2024, 01:30

4

2,157

by: Edoua

07 May 2024, 07:40

ER

Is the overall average score of the 3 classes A, B, and C together is

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

25 May 2022, 05:30

7

3

1,690

by: bumpbot

07 May 2024, 00:22

ER

Is the average of n consecutive integers equal to 1 ?

805+ (Hard) | Number Properties, Statistics and Sets Problems

805+ (Hard) | Number Properties, Statistics and Sets Problems hide tags

enigma123

05 Nov 2013, 03:19

64

12

14,069

by: bumpbot

06 May 2024, 11:59

Steve deposited $100 to open a savings account. If there are no other

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

01 May 2024, 01:30

3

1,402

by: sayan640

06 May 2024, 11:27

ER

In a certain school, teachers who lecture English and Spanish are ther

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

MathRevolution

08 Jun 2016, 17:02

6

4

3,715

by: bumpbot

06 May 2024, 10:59

ER

At a certain pancake festival with 600 attendees in which every attend

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

26 Jul 2016, 09:50

1

6

5,537

by: bumpbot

06 May 2024, 10:10

ER

Pat has coins worth either $0.10 or $0.50. If she has more than five

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

04 Apr 2024, 01:30

4

2

2,313

by: Bunuel

04 May 2024, 02:15

An old man distributed his estate worth x dollars to his three sons

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

03 May 2024, 01:30

4

2

1,447

by: Nidzo

03 May 2024, 05:12

A bank compounds interest for its customers annually. How much

Sub 505 (Easy) | Percent and Interest Problems

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

Bunuel

02 May 2024, 01:30

3

2

1,367

by: Akkiiii

02 May 2024, 10:27

Jack is 4 years older than Daniel. What are their ages now?

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

Bunuel

02 May 2024, 01:30

2

1,453

by: Nidzo

02 May 2024, 05:59

Of the people stand in a line waiting for service, 20% have waited for

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

Bunuel

01 May 2024, 01:30

12

4

2,090

by: Nidzo

01 May 2024, 05:52

ER

50% of the factory workers are not older than 30 years old. What perce

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

14 Jan 2020, 05:15

1

2

4,522

by: bumpbot

30 Apr 2024, 14:59

Vijay made a telephone call. If Vijay's total cost for the call was

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

29 Apr 2024, 01:30

7

5

1,448

by: stne

30 Apr 2024, 11:43

Of the 200 students in a college, 125 learned Spanish and 81 learned

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

30 Apr 2024, 01:30

2

1

1,151

by: Nidzo

30 Apr 2024, 04:24

Of the students in a certain class, 40 learn Spanish, 30 learn French,

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

30 Apr 2024, 01:30

2

1

1,590

by: thanhtra01011

30 Apr 2024, 03:19

ER

The sequence of four numbers a1, a2 , a3 and a4 is such that

505-555 (Easy) | Arithmetic, Sequences

505-555 (Easy) | Arithmetic, Sequences hide tags

pritishmohan

18 May 2013, 01:25

69

10

19,657

by: bumpbot

29 Apr 2024, 08:42

What is the standard deviation of three positive integers a,b, and c?

555-605 (Medium) | Statistics and Sets Problems

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

TheUltimateWinner

04 Sep 2019, 09:49

4

3

2,075

by: bumpbot

28 Apr 2024, 07:47

ER

Alex spends 30% of his income on his children’s education, 20% on

805+ (Hard) | Percent and Interest Problems, Word Problems

805+ (Hard) | Percent and Interest Problems, Word Problems hide tags

VenoMfTw

03 Aug 2015, 00:45

27

7

7,257

by: bumpbot

28 Apr 2024, 05:27

ER

A weighted coin has a probability p of showing heads. Is the value of

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

GMATBusters

06 May 2018, 00:42

16

6

7,082

by: bumpbot

28 Apr 2024, 04:16

ER

A cafeteria offers seven types of sandwiches, each with a fixed price

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

08 Feb 2017, 01:51

21

6

5,745

by: bumpbot

27 Apr 2024, 11:07

ER

For a class of 50 students, the table above reports the number of stud

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

ajgoupil

12 Feb 2020, 10:50

21

5

6,251

by: Bunuel

27 Apr 2024, 02:02

A certain medical insurance company sold two types of policies

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Bunuel

26 Apr 2024, 01:30

2

1

1,031

by: Nidzo

26 Apr 2024, 05:48