100 Hardest and easiest questions for DS as of March 2023 #Announcements
Nov 16, 2022
Ku: 719 ER Re: 19DS Question Directory by Topic and Difficulty #Announcements
Mar 7, 2012
Ku: 1363 ER Re: 0In a certain group, the average (arithmetic mean) age of the males is
Yesterday at 10:51am
Ku: 11 ER Re: 5If list Q contains more than two numbers, are all the numbers in Q equ
Yesterday at 10:41am
Ku: 8 ER Re: 8The management of a company reviews the performance of 15 employees
Yesterday at 10:29am
Ku: 5 ER Re: 4Prof Liu gave the same quiz to the students in her morning class and
Yesterday at 09:18am
Ku: 227 ER Re: 16If r and s are positive integers, can the fraction r/s be expressed as
Yesterday at 08:59am
Ku: 681 ER Re: 38If the probability that a certain event occur is p, what is the value
Yesterday at 07:14am
Ku: 1 ER Re: 1Yesterday at 07:14am
Ku: 92 ER Re: 10In a class, every student is either American or European
Yesterday at 06:02am
Ku: 11 ER Re: 4Line DB divides Rectangle ABCD into two equal triangles. Is Angle ABD
Yesterday at 04:53am
Ku: 14 ER Re: 6What is the area of square ABCD ?
Yesterday at 04:53am
Ku: 12 ER Re: 4Of the companies surveyed about the skills they required in prospectiv
Apr 19 at 02:59am
Ku: 212 ER Re: 12A chef baked 12 cakes, of which some were strawberry-flavored and the
Apr 19 at 01:31am
Ku: 0 ER Re: 0If vertices of a triangle have coordinates (-1,0), (4,0),
Apr 18 at 06:49pm
Ku: 158 ER Re: 60When a positive integer N is divided by 11, the remainder is 5.
Apr 18 at 02:55pm
Ku: 1 Re: 1If b is a positive number, is a^2 2a + b > 0?
Apr 18 at 02:33pm
Ku: 3 Re: 2If x^{n+1} - 2x^n=3x^n, then what is the value of x^n?
Apr 18 at 12:06pm
Ku: 4 ER Re: 9What is the area of triangle ABC? (1) AB = 5, AC = 12 (2) ABC is a ri
Apr 18 at 11:49am
Ku: 16 ER Re: 10A bag contains only two types of coins: 10 cent coins or 1 dollar coin
Apr 18 at 10:39am
Ku: 11 ER Re: 4If x, y, and z are positive integers, is x + y divisible by 7 ?
Apr 18 at 09:53am
Ku: 0 ER Re: 1If x is an integer greater than 1, is x equal to the 12th
Apr 18 at 08:14am
Ku: 357 ER Re: 17If a and b are positive integers, what is the units digit of
Apr 18 at 06:23am
Ku: 140 ER Re: 9Each of the five divisions of a certain company sent representatives
Apr 18 at 05:35am
Ku: 98 ER Re: 14If a is an integer, what is the units digit of a^18?
Apr 18 at 05:25am
Ku: 16 ER Re: 7If x is an integer, is 4^x + 4^(-x) = y ?
Apr 18 at 05:06am
Ku: 7 ER Re: 3If j and k are positive integers and j + k is odd
Apr 18 at 05:03am
Ku: 8 ER Re: 5A restaurant serves only tacos and enchiladas. If 60% of all who ate
Apr 18 at 04:59am
Ku: 25 ER Re: 9List M (not shown) consists of 8 different integers, each of which is
Apr 18 at 04:55am
Ku: 449 ER Re: 192001, the closing price of stock A and stock B are the same.
Apr 18 at 04:54am
Ku: 56 ER Re: 7A music festival took place over two days, Saturday and Sunday. What
Apr 18 at 04:18am
Ku: 27 ER Re: 14A hotel has two types of rooms: basic and deluxe. On a certain night
Apr 18 at 04:10am
Ku: 8 ER Re: 3In the diagram above, O is the center of the circle and angle AOB = 14
Apr 18 at 04:04am
Ku: 10 ER Re: 6In the figure above, a circle is inscribed in square ABCD. What is the
Apr 18 at 03:14am
Ku: 20 ER Re: 9If there are 1030 grains of sand on Playa de Sonrisa, how many of thes
Apr 18 at 02:49am
Ku: 115 ER Re: 15What is the value of the positive integer m?
Apr 18 at 02:16am
Ku: 10 ER Re: 3In a certain year, the port of Valdez Harbor handled 240% of the cargo
Apr 18 at 01:30am
Ku: 0 ER Re: 0If x and y are integers, is 4x^2 - y^2 an odd number?
Apr 17 at 11:03pm
Ku: 0 ER Re: 2Is xy < -x/y (1) xy < 0 (2) y < 0
Apr 17 at 10:54pm
Ku: 0 ER Re: 2If 0 < ab < ac, is a negative? (1) c < 0 (2) b > c
Apr 17 at 11:58am
Ku: 18 ER Re: 6If x and y are integers, is xy divisible by 3 ?
Apr 17 at 11:22am
Ku: 2 ER Re: 4If k and ℓ are lines in the xy-plane, is the slope of k less than the
Apr 17 at 11:06am
Ku: 232 ER Re: 25What is the sum of 5 evenly spaced integers in a set? (1) The median
Apr 17 at 10:19am
Ku: 3 ER Re: 2Is |x| > 2 ? (1) x > 2 (2) x(x - 2) > 0
Apr 17 at 10:09am
Ku: 1 ER Re: 1If x, y and z are positive integers, is it true that x^2 is divisible
Apr 17 at 10:01am
Ku: 7 ER Re: 12In a survey conducted by company Q, about which tea is preferred by pe
Apr 17 at 09:57am
Ku: 5 ER Re: 2What is the value of 1/(x^2 - y^2) - 1/(x^2 + 2xy + y^2) ?
Apr 17 at 08:52am
Ku: 17 ER Re: 6What is the mode of the list above?
Apr 17 at 07:35am
Ku: 19 ER Re: 12All attendees at a university gathering are faculty or alumni of the u
Apr 17 at 05:20am
Ku: 7 ER Re: 6Is 3^n > 1,000? (1) 3^(n2) < 500 (2) 3^n = 3^(n+1) 486
Apr 17 at 04:47am
Ku: 2 ER Re: 2If 1 < x < 2, is x a terminating decimal? (1) 22x is an integer.
Apr 17 at 04:28am
Ku: 2 ER Re: 2If 320 people attended the wedding and 200 attendees drank
Apr 17 at 02:10am
Ku: 26 ER Re: 170 user online