100 Easiest Data Sufficiency Questions (May 1st, 2021 - Jun 1st, 2021)

Are you familiar with the GMAT Club's timer?We have pulled timer results from our database and analyzed every question in the forum. Based on those results, we have compiled a list of the easiest questions in each of the question forums we have. Below I am presenting to you the top 100 questions from DS forum.

Data Sufficiency (DS)
Rank	Title	Topics
1	What is the number of pages of a certain journal article? The size of	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
2	What is the value of 10 percent of y?	Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
3	What is the value of x ?	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016
4	If a certain vase contains only roses and tulips, how many tulips are	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
5	What is the perimeter of triangle ABC ? (1) AB = 16 inches (2) ABC is	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: Quant Review 2020
6	What is the value of x ?	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2nd
7	How many basic units of currency X are equivalent to 250 basi	Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 2020, Source: OG 2019
8	If r and s are positive integers, is r + s even?	Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 2020
9	What was the median annual salary for the employees at Compan	Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
10	In a recent town election, what was the ratio of the number of votes	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
11	In College X the number of students enrolled in both a	Difficulty: Sub-600 Level, Overlapping Sets, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12
12	The research funds of a certain company were divided among three depar	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
13	For which type of investment, J or K, is the annual rate of return gre	Difficulty: Sub-600 Level, Percent and Interest Problems, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2022, Source: OG 2015, Source: OG 12
14	What is the value of z in the figure above?	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2021
15	If x and y are positive what is the value of x?	Difficulty: Sub-600 Level, Algebra, Source: OG 10, Source: Quant Review 1st
16	What is the tenths digit of the number d when it is written as a decim	Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: EA, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016
17	If sequence S has 120 terms, what is the 105th term of S?	Difficulty: Sub-600 Level, Sequences, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
18	What is the value of x? (1) x + 1 = 2 - 3x (2) 1/(2x) = 2	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 10, Source: Quant Review 1st
19	What is the value of n?	Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep
20	If p and q are positive, is p/q less than 1?	Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016
21	If sequence S has 100 terms, what is the 83rd term of S?	Difficulty: Sub-600 Level, Sequences, Source: Other - Please specify
22	The symbol R represents one of the following	Difficulty: Sub-600 Level, Arithmetic, Functions and Custom Characters, Source: GMAT Hacks
23	Each of the marbles in a jar is either red or white or blue. If one ma	Difficulty: Sub-600 Level, Probability, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
24	If p, q, x, y, and z are different positive integers, which	Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 1st, Source: Quant Review 2nd, Source: Quant Review 2016
25	What number is 15 percent of x ? (1) 18 is 6 percent of x (2) 2/3 of x	Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 11, Source: OG 10
26	Is x = 1/y? (1) xy = 1 (2) 1/(xy) = 1	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
27	Is 2x > 2y ? (1) x > y (2) 3x > 3y	Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016
28	What is the value of w^(−2)?	Difficulty: Sub-600 Level, Exponents/Powers, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
29	What is the value of xy?	Difficulty: Sub-600 Level, Algebra, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 1st, Source: Quant Review 2nd, Source: Quant Review 2016
30	A company bought 3 printers and 1 scanner. What was the price of the	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
31	Is the integer k a prime number? (1) 2k = 6 (2) 1 < k < 6	Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 11
32	P is a particle on the circle shown above. What is the length of the p	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: Quant Review 2020
33	What is 11% of x? (1) 3/8 of x is 24 (2) 5% of x is 3.2	Difficulty: Sub-600 Level, Arithmetic, Percent and Interest Problems, Source: Manhattan GMAT
34	What is the average distance that automobile D travels on one full tan	Difficulty: Sub-600 Level, Algebra, Word Problems, Source: Official Guide [Pre-2000], Source: OG 1988
35	Carlotta can drive from her home to her office by one of two	Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Official Guide, Source: OG 12, Source: OG 11, Source: OG 10
36	If sequence S has 200 terms, what is the 192nd term of S	Difficulty: Sub-600 Level, Sequences, Source: GMAT Prep, Source: OG 12
37	A box contains only white balls and black balls. What is the probabili	Difficulty: Sub-600 Level, Probability, Source: Official Guide, Source: Quant Review 2021
38	The figure above represents a circle graph of Company H's total expens	Difficulty: Sub-600 Level, Geometry, Graphs and Illustrations, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
39	Committee member W wants to schedule a one-hour meeting on T	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 1st, Source: Quant Review 2nd, Source: Quant Review 2016
40	How many of the students in a certain class are taking both a history	Difficulty: Sub-600 Level, Number Properties, Word Problems, Source: GMAT Prep
41	Is x an integer? (1) x^3 = 8 (2) x = 4^(1/2)	Difficulty: Sub-600 Level, Algebra, Number Properties, Source: Official Guide, Source: OG 2020
42	What is the value of x−1?	Difficulty: Sub-600 Level, Algebra, Source: Official Guide [Pre-2000], Source: OG 1988, Source: Other - Please specify
43	In the xy-plane above, is angle QPR a right angle?	Difficulty: Sub-600 Level, Coordinate Geometry, Geometry, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
44	What is the volume of the right circular cylinder X ?	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2021
45	P is a particle on the circle shown above. What is the length of the p	Difficulty: Sub-600 Level, Geometry, Source: Official Guide [Pre-2000]
46	If the list price of a new car was $12,300, what was the cost of the	Difficulty: Sub-600 Level, Percent and Interest Problems, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10
47	How many liters of apple juice were added to the cranberry juice in a	Difficulty: Sub-600 Level, Mixture Problems, Source: Manhattan GMAT
48	Is p^2 an odd integer?	Difficulty: Sub-600 Level, Number Properties, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 1st, Source: Quant Review 2nd, Source: Quant Review 2016
49	Is k positive? (1) k is between -2 and 3 on the number line. (2) k is	Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep
50	Is x < y?	Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2nd
51	Hoses X and Y simultaneously fill an empty swimming pool tha	Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 1st, Source: Quant Review 2nd
52	There are 2 groups of students who took a history test. Was the averag	Difficulty: Sub-600 Level, Overlapping Sets, Source: Official Guide, Source: OG 2021
53	Is rw = 0?	Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
54	Is x < y? (1) z < y (2) z < x	Difficulty: Sub-600 Level, Inequalities, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 1st, Source: Quant Review 2016
55	Does 2x + 8 = 12 ? (1) 2x + 10 = 14 (2) 3x + 8 = 14	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019
56	If n is a positive integer, are n and 1 the only positive divisors of	Difficulty: Sub-600 Level, Number Properties, Source: Official Guide [Pre-2000], Source: OG 1988
57	What is the retail price of a certain calculator? (1) The retail pri	Difficulty: Sub-600 Level, Arithmetic, Source: Manhattan GMAT
58	Is n an integer greater than 14?	Difficulty: Sub-600 Level, Number Properties, Source: Official Guide [Pre-2000], Source: OG 1988
59	What is the greatest integer that is less than t?	Difficulty: Sub-600 Level, Number Properties, Source: GMAT Prep
60	If x^(1/2)/y = n, what is the value of x?	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 11, Source: OG 10
61	What is the value of x? (1) 5x - 3 = 7 (2) x/10 = 1/5	Difficulty: Sub-600 Level, Algebra, Source: Official Guide [Pre-2000], Source: OG 1988
62	Is x between 0 and 1? (1) x is between -1/2 and 3/2 (2) 3/4 is 1/4	Difficulty: Sub-600 Level, Inequalities, Source: GMAT Prep, Source: Quant Review 2020, Source: Quant Review 2019
63	Point (x, y) has in which quadrant of the rectangular coordinate syste	Difficulty: Sub-600 Level, Coordinate Geometry, Source: GMAT Paper Tests, Source: Magoosh, Source: OG 10, Source: Quant Review 1st
64	How many people in a group of 50 own neither a fax machine nor a laser	Difficulty: Sub-600 Level, Overlapping Sets, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
65	A certain bag contains red, blue, and green marbles. What is the ratio	Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: GMAT Prep
66	A thoroughly blended biscuit mix includes only flour and bak	Difficulty: Sub-600 Level, Mixture Problems, Source: OG 11, Source: OG 10
67	If the Longfellow Playground is rectangular, what is its width?	Difficulty: Sub-600 Level, Geometry, Source: Official Guide [Pre-2000], Source: OG 1988
68	What is the value of r/2 + s/2 ?	Difficulty: Sub-600 Level, Algebra, Arithmetic, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 1st, Source: Quant Review 2nd, Source: Quant Review 2016
69	If n is an integer, is n + 1 odd?	Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11
70	How many student s are enrolled in the Groveville Public Schools?	Difficulty: Sub-600 Level, Algebra, Source: Official Guide [Pre-2000], Source: OG 1988
71	If R, S, and T are points on a line, and if R is 5 meters from T and 2	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2020
72	If x is positive, what is the value of y ?	Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep
73	Is the product ny greater than 0 ? (1) n is between –1 and 1. (2) y	Difficulty: Sub-600 Level, Inequalities, Source: GMAT Prep
74	How much is 20 percent of a certain number a ?	Difficulty: Sub-600 Level, Algebra, Source: OG 11, Source: Other - Please specify
75	How many men are in a certain company's vanpool program?	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
76	For the system of equations given, what is the value of z?	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11
77	In a certain class, some students donated cans of food to a local food	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
78	What is the value of n in the list above?	Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
79	In the figure above, if lines k and m are parallel, what is the value	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 11, Source: OG 10
80	If integer p is greater than 1, is p a prime number?	Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Number Properties, Source: GMAT Prep
81	Is x greater than 1.8? (1) x > 1.7 (2) x > 1.9	Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: OG 11, Source: OG 10
82	What is the product of v, w, and x?	Difficulty: Sub-600 Level, Number Properties
83	If r > 0, is rs < 0 ? (1) s < 0 (2) s < r	Difficulty: Sub-600 Level, Inequalities, Source: GMAT Prep
84	What is the value of w + q ? (1) 3w=3-3q (2) 5w +5q = 5	Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
85	On a map, 1/2 inch represents 100 miles. According to this map, how ma	Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 2020
86	Is m > k? (1) 3m > 3k (2) 2m > 2k	Difficulty: Sub-600 Level, Inequalities, Source: GMAT Prep
87	Machine R and machine S work at their respective constant rates. How	Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019
88	In ΔJKL shown above, what is the length of segment JL ?	Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2020
89	What was the range of the selling prices of the 30 wallets sold by a	Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016
90	Is the triangle above equilateral?	Difficulty: Sub-600 Level, Geometry, Source: GMAT Paper Tests, Source: OG 11, Source: OG 10
91	Is the integer p even? (1) The integer p^2 + 1 is odd. (2) The integer	Difficulty: Sub-600 Level, Number Properties, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019
92	If knz≠0, what is the ratio of k to n? 1) The ratio of k to z is 2 to	Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Math Revolution
93	What is the value of x^3?	Difficulty: Sub-600 Level, Absolute Values/Modulus, Algebra, Source: Veritas Prep
94	If r and s are positive integers, r is what percent of s?	Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 11, Source: OG 10, Source: Quant Review 1st
95	The number of seats in the first row of an auditorium is 18	Difficulty: Sub-600 Level, Sequences, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015
96	What is the value of the integer N?	Difficulty: Sub-600 Level, Inequalities, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016
97	A garden store purchased a number of shovels and a number of rakes. If	Difficulty: Sub-600 Level, Word Problems, Source: GMAT Prep
98	What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10	Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep
99	If p and q are positive numbers, what percent of p is q?	Difficulty: Sub-600 Level, Percent and Interest Problems, Source: GMAT Prep
100	A circular pizza is cut into eight wedge-shaped slices of equal size.	Difficulty: Sub-600 Level, Geometry, Source: Manhattan GMAT

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Older version of this topic with 100 hardest questions is HERE.
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is there a dump of all these questions rather than click each link?

is there a dump of all these questions rather than click each link?
Bunuel IF not can you please make one as Its very time consuming due to technical problem
thanks!!

This is very helpful. Thank you very much for your efforts. You are doing a great service to those who aspire to ace GMAT. Keep up the good work.

Posted from my mobile device

Thanks Buñuel for your efforts.[WHITE SMILING FACE]

Sent from my Moto G Play using GMAT Club Forum mobile app

Hi Bunuel ,

Thanks for the sharing the list of questions.

Do we anywhere have the option to download all the questions in one go or we have to access them separately only.

Thanks!

The list is regularly updated so there is no downloadable file.
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Hi Bunuel
This is extremely helpful, many thanks

answer choices are not showing. Could anyone let me know to view the answers.

Click Spoiler: OA in the first post of a topic to check the official answer.

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Yes. Even though the list is updated once a month, many questions in top remain the same.
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Hi bb

Is there any way for a user to search questions by the level of difficulty (e.g. 85% above) in this forum? I know the difficulty level is generated by an unofficial algorithm, but I feel that the computed level is pretty much reliable indicator.

There are 3 difficulties that are available for search. That’s how the system works - hard, medium, and easy.

https://gmatclub.com/forum/search.php?view=search_tags

Posted from my mobile device
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So the questions labeled "hard" are questions you need to get right on the exam regularly to score a 700?

Is it still possible to hit a 700+ while acing easy and medium problems and then getting about half the difficult ones correct?

i've been studying for a month or so - I still haven't taken a practice exam to gauge where i am (i know i should), but just wondering for a quick check on my status. Ive been doing so-so on the medium/hard problems - getting the mediums usually correct, but the hard ones occasionally..

Hi and welcome to GMAT Club!

A test is really the best indicator since there are many elements involved and it is no substitute to understanding your score. Though it is also good to be able to know on a daily basis how you are doing and not waiting a week or a month to take a test.

It is tough to tell based on the pure number of questions without knowing the difficulty or which ones you missed so here is what I would say based on my crazy method (completely unscientific):
if you can take 10 questions of easy, medium, and hard difficulty, and....

miss 10%, you are at 750.
miss 20%, you are at 700
miss 30%, you are at 650
miss 40%, you are at 600

Now, I would recommend that you actually study using a guidebook or a course (something other than OG).
Also, I want to warn you that some of the OG 12 questions are in the GMAT Prep so you don't want to head to the OG 12 (or perhaps that's OG 21 you meant to say?).

And if you want to see how wildly scoring differs based on a few factors, here is a topic for you:
https://gmatclub.com/forum/gmat-prep-so ... 46146.html
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