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: 0If the product of three integers, mnk is divisible by 5, is k a
Mar 27 at 04:27am
Ku: 2 ER Re: 2Seven integers, x1, x2, x3, x4, x5, x6, and x7, are picked at random f
Mar 27 at 03:38am
Ku: 107 ER Re: 14The lengths of two sides of a certain triangle are 3 and 9. What is th
Mar 27 at 02:13am
Ku: 11 ER Re: 4If @ denotes one of two arithmetic operations, addition or
Mar 27 at 01:45am
Ku: 43 ER Re: 18Find ratio of x:y:z (1) 7x = 8z + 4y (2) 6z = 11y + 5x
Mar 27 at 01:40am
Ku: 8 ER Re: 3Each week a certain salesman is paid a fixed amount equal to
Mar 27 at 12:58am
Ku: 249 ER Re: 19At a certain bakery, each roll costs r cents and each doughnut costs
Mar 27 at 12:50am
Ku: 57 ER Re: 16If x is a positive integer greater than 1, is 1/x a terminating decima
Mar 27 at 12:28am
Ku: 0 ER Re: 3If $ represents a digit in the 7-digit number 3,62$,215, what is the
Mar 27 at 12:23am
Ku: 29 ER Re: 6Mar 27 at 12:22am
Ku: 15 Re: 8What is the difference between the number of chocolates with Alice and
Mar 26 at 11:35pm
Ku: 5 ER Re: 2If |x + 2| = 4, what is the value of x ? (1) x^2 ≠ 4 (2) x^2 = 36
Mar 26 at 10:03pm
Ku: 35 ER Re: 6There are three circles, with radii 2, 4 and 5, respectively
Mar 26 at 11:57am
Ku: 17 ER Re: 9In the figure above, P and Q are centers of two identical circles. Is
Mar 26 at 11:12am
Ku: 43 ER Re: 18What is the value of z in the figure above?
Mar 26 at 11:09am
Ku: 12 ER Re: 8Refer to the figure above, is triangle ABC an equilatera
Mar 26 at 08:35am
Ku: 4 ER Re: 3In the 30-day month of June, a motorcycle dealership sold a
Mar 26 at 07:52am
Ku: 48 ER Re: 8a = x + y and b = x - y. If a^2 = b^2, what is the value of
Mar 26 at 06:30am
Ku: 68 ER Re: 9If Car X followed Car Y across a certain bridge that is 1/2
Mar 26 at 06:03am
Ku: 138 ER Re: 22Is x >= 3 ? (1) x^2 - 9 = 0 (2) x < 10
Mar 26 at 06:00am
Ku: 2 ER Re: 3If n is an integer and x^n – x^(-n) = 0, what is the value of x ?
Mar 26 at 05:52am
Ku: 87 ER Re: 8Is x² + y² > -2xy? (1) xy > 0 (2) x - y = 4
Mar 26 at 04:50am
Ku: 0 ER Re: 3How many positive prime numbers are less than the integer n?
Mar 26 at 04:44am
Ku: 12 ER Re: 3A rectangle is plotted on the standard coordinate plane
Mar 25 at 11:19pm
Ku: 72 ER Re: 21If x, y, and z are integers, and x < y < z, is z y = y
Mar 25 at 11:14pm
Ku: 115 ER Re: 12Is x^y < 1 ? (1) x > 1 (2) y < 1
Mar 25 at 11:13pm
Ku: 1 ER Re: 1Shaina's five-distinct-digit locker code is 5A48B. What
Mar 25 at 11:08pm
Ku: 78 ER Re: 17Sequence S consists of 24 nonzero integers. If each term in
Mar 25 at 11:08pm
Ku: 48 ER Re: 22Of all the attendees at a dinner party, 40% were women. If
Mar 25 at 11:05pm
Ku: 189 ER Re: 27Mar 25 at 11:04pm
Ku: 68 ER Re: 19Is xy<0 ? (1) x^3*y^5/x*y^2 <0 (2) |x|-|y|<|x-y
Mar 25 at 11:02pm
Ku: 98 ER Re: 13If x < p < q < y. Is |q - x| < |q - y|?
Mar 25 at 10:58pm
Ku: 27 ER Re: 16If xy 0, is x > y? (1) 4x = 3y (2) |y - x| = x - y
Mar 25 at 10:56pm
Ku: 155 ER Re: 19Does the curve (x-a)^2 + (y-b)^2=16 intersect the y-axis ?
Mar 25 at 10:56pm
Ku: 231 ER Re: 16If for any positive integer x, d[x] denotes its smallest odd
Mar 25 at 10:56pm
Ku: 48 ER Re: 8If, in the addition problem above, a, b, c, d, e, f, x, y, a
Mar 25 at 10:41pm
Ku: 422 ER Re: 40Mar 25 at 10:41pm
Ku: 67 ER Re: 8A set of nonnegative integers consists of {x, x + 7, 2x, y, y + 5}.
Mar 25 at 07:34pm
Ku: 105 ER Re: 13If a and b are distinct integers and their product is not equal to
Mar 25 at 01:12pm
Ku: 121 ER Re: 9If p is an integer, is p a prime number?
Mar 25 at 12:18pm
Ku: 3 ER Re: 3What is the value of m ? (1) 3^(3m - 1) = 9 (2) 5^(2m + 1) = 125
Mar 25 at 11:56am
Ku: 0 ER Re: 1Is p^2 an odd integer? (1) p is an odd integer. (2) is an odd integer.
Mar 25 at 11:21am
Ku: 17 ER Re: 6In a two-story apartment complex, each apartment on the upper floor re
Mar 25 at 08:04am
Ku: 33 ER Re: 8Any decimal that has only a finite number of nonzero digits
Mar 25 at 06:36am
Ku: 144 ER Re: 12If y ≠2xz, what is the value of (2xz + yz)/(2xz – y)?
Mar 25 at 06:20am
Ku: 96 ER Re: 16In the correctly worked addition problem above, A, B, C, D
Mar 25 at 05:54am
Ku: 326 ER Re: 15How many songs did the musician record? (1) Of the songs the musician
Mar 25 at 05:22am
Ku: 4 ER Re: 4If the sequence v, w, x, y, and z is in Arithmetic progression
Mar 25 at 12:13am
Ku: 1 Re: 1If N is a positive odd integer, is N prime?
Mar 24 at 08:05pm
Ku: 177 ER Re: 16What is the units digit of 4^n?
Mar 24 at 12:36pm
Ku: 1 ER Re: 30 user online