Data Sufficiency (DS)

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,989

by: bb

29 Aug 2025, 13:27

A pencil costs $3 and a pen costs $7. If pens and pencils

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innocous

16 Aug 2013, 08:36

3

2

3,219

by: zerosleep

19 Aug 2013, 07:21

ER

If x is an integer, is x/2 an even integer ?

505-555 (Easy) | Number Properties

505-555 (Easy) | Number Properties hide tags

hb

01 Jan 2016, 06:54

10

2

12,914

by: hb

21 Jul 2013, 07:26

ER

Five people - Adam, Bob, Craig, Daniel and Evan - are of dif

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Carcass

26 Jun 2013, 18:26

2

2,282

26 Jun 2013, 20:31

ER

Is square root of a positive integer x an integer?

705-805 (Hard) | Multiples and Factors, Number Properties

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

summer101

03 Jun 2013, 07:14

37

2

9,770

05 Jun 2013, 03:07

ER

What is the value of a+b ?

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summer101

02 Jun 2013, 05:07

2

2,045

02 Jun 2013, 10:45

Machine A can fill an order of widgets in a hours. Machine B

805+ (Hard) | Work and Rate Problems

805+ (Hard) | Work and Rate Problems hide tags

nshang

22 Jul 2013, 06:25

88

2

30,472

by: Sachin9

16 Jan 2013, 02:08

ER

In a class, each of the students were asked to pick an integ

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tabsang

25 Dec 2012, 01:59

2

4,009

by: tabsang

25 Dec 2012, 05:43

Find the number of days in the year X

Sub 505 (Easy) | Word Problems

Sub 505 (Easy) | Word Problems hide tags

siddharthamaridi

20 Mar 2025, 08:32

2

2,998

by: MacFauz

14 Nov 2012, 02:07

X and Y are positive numbers. Is the hundredth digit of XY

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g81

06 Jun 2012, 13:38

1

2

2,426

by: g81

06 Jun 2012, 14:05

If the market value of a car was $6,000 exactly 3 years ago

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hfbamafan

08 May 2012, 22:28

8

2

10,018

by: chibiutena

09 May 2012, 09:38

ER

is (a-b)/c >0? 1. a>b, b<c 2. a<b, b<c

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Creeper300

07 Nov 2010, 13:44

3

2

3,468

by: metallicafan

03 Feb 2012, 11:39

In the xy plane, what is the slope of line perpendicular to

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

DeeptiM

28 Aug 2011, 12:33

4

2

3,125

by: fluke

28 Aug 2011, 13:15

ER

If c and k are distinct positive integers, is c divisible by

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gmatpapa

24 Jan 2011, 01:01

8

2

3,422

by: gmatpapa

24 Jan 2011, 03:38

What percent of x is 3/4?

Sub 505 (Easy) | Percent and Interest Problems

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

jscott319

11 Dec 2010, 20:03

2

4,964

by: jscott319

11 Dec 2010, 21:18

A right polygon is inscribed in a circle. How many sides

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aalriy

10 Dec 2010, 08:05

1

2

4,998

by: aalriy

10 Dec 2010, 10:58

ER

A biker travels from point A to Point C in a straight line

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Creeper300

07 Nov 2010, 13:53

2

2,842

by: KarishmaB

08 Nov 2010, 10:04

ER

[1/a^2+1/a^4+1/a^6+...]>[1/a+1/a^3+1/a^5]

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honeyhani

18 Oct 2010, 05:03

3

2

4,053

by: IanStewart

18 Oct 2010, 11:48

ER

Find an integer n?

505-555 (Easy) | Absolute Values, Exponents

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

stolyar

22 May 2003, 01:09

2

5,635

16 Aug 2010, 09:55

ER

If y>0 is x>y? 1. 5x-4y=3 2. 4y-5x=3

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agnok

17 Jul 2010, 08:21

3

2

4,079

by: agnok

20 Jul 2010, 08:28

ER

A community theater sold tickets for the same show in January and in

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

22 Apr 2026, 19:00

3

156

30 Apr 2026, 02:45

ER

If x_n = a^{(2n-1)}, where n is a positive integer then find sum of th

805+ (Hard) | Functions and Custom Characters +2 tags

805+ (Hard) | Functions and Custom Characters, Number Properties, Sequences hide tags

GMATinsight

27 May 2021, 08:45

5

3

1,600

30 Apr 2026, 02:18

ER

At a food fair, Nora bought 8 kilograms of nuts from each of two

555-605 (Medium) | Fractions and Ratios, Word Problems

555-605 (Medium) | Fractions and Ratios, Word Problems hide tags

Bunuel

29 Apr 2026, 19:00

3

43

by: S1mple3

30 Apr 2026, 01:56

ER

For all numbers p and q (where p 0 ), the operation $ is defined as

605-655 (Medium) | Functions and Custom Characters

605-655 (Medium) | Functions and Custom Characters hide tags

Bunuel

24 Jun 2022, 09:30

3

2,004

29 Apr 2026, 22:10

ER

A contractor was hired to build a house for $132,000, consisting of

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

ExpertsGlobal5

04 Mar 2026, 20:00

6

3

479

by: Siddharth17

29 Apr 2026, 07:54

ER

The sequence a_1, a_2, a_3, a_4, . . ., consists of positive integers,

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Russ19

15 May 2021, 05:03

4

3

1,689

29 Apr 2026, 07:36

ER

Do at least 24 percent of Loral business school students aspire to do

705-805 (Hard) | Fractions and Ratios, Percent and Interest Problems

705-805 (Hard) | Fractions and Ratios, Percent and Interest Problems hide tags

Bunuel

21 Apr 2021, 06:30

9

3

2,099

29 Apr 2026, 07:33

ER

A publishing company allocated its entire annual operating budget

555-605 (Medium) | Percent and Interest Problems

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

Bunuel

28 Apr 2026, 19:00

2

3

100

29 Apr 2026, 00:02

ER

At a museum, all visitors in a certain tour group were either students

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

27 Apr 2026, 19:00

2

3

115

28 Apr 2026, 10:08

ER

What is the sum of the terms in a certain sequence of consecutive inte

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

26 May 2021, 02:01

5

3

2,663

by: GrandGG

28 Apr 2026, 05:53

ER

What is the average (arithmetic mean) of a sequence of N consecutive

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

22 Sep 2023, 01:30

10

3

2,315

by: Tinytrotter

27 Apr 2026, 06:01

ER

20 percent of the households in Ruterberg have pets. If 15 percent of

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

Bunuel

13 Dec 2024, 01:30

4

3

1,895

26 Apr 2026, 23:48

ER

Julian had five indoor potted plants, each of which - in order to

655-705 (Hard) | Non-Math Related

655-705 (Hard) | Non-Math Related hide tags

HarshitaV

24 Nov 2025, 09:46

13

3

1,612

by: Harsh_

26 Apr 2026, 11:43

ER

If 50 people paid a total of $110 for tickets to attend a certain high

655-705 (Hard) | Word Problems

655-705 (Hard) | Word Problems hide tags

guddo

24 Jan 2024, 04:15

35

3

8,604

by: keshubhturakhia

26 Apr 2026, 04:50

ER

At a community arts festival, each of the 72 volunteers was assigned

655-705 (Hard) | Probability

655-705 (Hard) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

5

3

210

26 Apr 2026, 02:30

ER

At a shipping center, every package in a certain batch is either

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

19 Apr 2026, 19:00

4

3

191

26 Apr 2026, 01:00

ER

In the sequence T, the first term is the non-zero number a, and each

805+ (Hard) | Sequences

805+ (Hard) | Sequences hide tags

Bunuel

06 Dec 2023, 02:30

5

3

1,923

25 Apr 2026, 23:49

ER

At a water-treatment facility, a pump was used to fill an empty

605-655 (Medium) | Work and Rate Problems

605-655 (Medium) | Work and Rate Problems hide tags

Bunuel

23 Apr 2026, 19:00

3

160

24 Apr 2026, 21:30

ER

At a small architecture firm, the average (arithmetic mean) age of the

555-605 (Medium) | Statistics and Sets Problems

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

Bunuel

23 Apr 2026, 19:00

2

3

162

24 Apr 2026, 21:24

ER

A reseller bought a vintage floor lamp at a weekend flea market and

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

Bunuel

16 Apr 2026, 19:00

11

3

285

23 Apr 2026, 02:45

ER

At a farmers market, Mia, Leo, and Owen each bought some oranges.

655-705 (Hard) | Statistics and Sets Problems

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

Bunuel

16 Apr 2026, 19:00

2

3

246

23 Apr 2026, 01:45

ER

If s is the sequence of more than two observations

705-805 (Hard) | Statistics and Sets Problems

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

PyjamaScientist

03 Oct 2021, 00:30

15

3

1,872

23 Apr 2026, 01:37

ER

Let [x] represent the average of the greatest integer less than or equ

705-805 (Hard) | Functions and Custom Characters

705-805 (Hard) | Functions and Custom Characters hide tags

Bunuel

29 Jan 2021, 01:15

6

3

2,479

22 Apr 2026, 04:54

ER

A man spends 20% of his income on house rent, 25% of the remaining inc

705-805 (Hard) | Percent and Interest Problems

705-805 (Hard) | Percent and Interest Problems hide tags

Bunuel

28 Jan 2021, 01:15

11

3

5,726

22 Apr 2026, 04:46

ER

There are a number of red beads and white beads in a jar. If Mike were

605-655 (Medium) | Probability

605-655 (Medium) | Probability hide tags

Bunuel

07 Apr 2016, 08:36

12

3

4,386

22 Apr 2026, 03:54

ER

At a warehouse, the daily output of Machine Orion is two-thirds of the

505-555 (Easy) | Work and Rate Problems

505-555 (Easy) | Work and Rate Problems hide tags

Bunuel

15 Apr 2026, 19:00

2

3

201

22 Apr 2026, 02:45

ER

An inspection agency follows these guidelines for newly laid pipelines

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

Bunuel

01 Apr 2026, 19:00

8

3

456

by: PlacidSoyabean

22 Apr 2026, 02:30

ER

What is the average (arithmetic mean) of a certain sequence of N

655-705 (Hard) | Sequences

655-705 (Hard) | Sequences hide tags

Bunuel

22 Sep 2023, 01:30

6

3

1,697

21 Apr 2026, 08:26

ER

A certain company operates a website, Z,

555-605 (Medium) | Word Problems

555-605 (Medium) | Word Problems hide tags

Brownbatman

20 Nov 2025, 13:40

12

3

1,810

by: keshubhturakhia

21 Apr 2026, 08:08

ER

A certain chef is combining two mixtures to create a soup.

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

14 Oct 2024, 01:30

16

3

2,114