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Data Sufficiency

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If y is a positive integer, what is the units digit of y?
by BTGmoderatorDC »
If y is a positive integer, what is the units digit of y? (1) The...
0
Last post by BTGmoderatorDC
Tue Dec 06, 2022 10:46 pm
Madge paid A dollars for R bananas. Dean paid B dollars for S bananas. Which one of them paid a higher price-per-banana?
by BTGmoderatorDC »
Madge paid A dollars for R bananas. Dean paid B dollars for S...
0
Last post by BTGmoderatorDC
Mon Dec 05, 2022 7:47 pm
Throughout last year, a stylish jacket had a full price of P in certain store. At the beginning of this year, the
by BTGmoderatorDC »
Throughout last year, a stylish jacket had a full price of P in...
0
Last post by BTGmoderatorDC
Sun Dec 04, 2022 9:35 pm
At a two-day seminar, 90 percent of those registered attended the seminar on the first day. What percent of those
by BTGmoderatorDC »
At a two-day seminar, 90 percent of those registered attended the...
0
Last post by BTGmoderatorDC
Sat Dec 03, 2022 7:04 pm
Circle C and line K lie in the XY plane. If circle C is centered at the orgin and has a radius 1,
by BTGmoderatorDC »
Circle C and line K lie in the XY plane. If circle C is centered at...
0
Last post by BTGmoderatorDC
Fri Dec 02, 2022 9:21 pm
A rectangular field of dimension 100 m x 80 m is to be covered by artificial grass. The cost of implementing artificial
by BTGmoderatorDC »
A rectangular field of dimension 100 m x 80 m is to be covered by...
0
Last post by BTGmoderatorDC
Mon Nov 28, 2022 10:37 pm
The only types of vehicles sold at a certain dealership last month were sedans, trucks, and vans. If the ratio of the
by BTGmoderatorDC »
The only types of vehicles sold at a certain dealership last month...
0
Last post by BTGmoderatorDC
Sun Nov 27, 2022 11:44 pm
What is the remainder when n is divided by 26, given that n divided by 13 gives
by BTGmoderatorDC »
What is the remainder when n is divided by 26, given that n divided...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Nov 27, 2022 7:08 am
If a, b, c, and d denote positive integers in the figure above, what is the value of the product abcd ?
by BTGmoderatorDC »
1.png If a, b, c, and d denote positive integers in the figure...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Nov 27, 2022 7:06 am
Steve works at an apple orchard and is paid by the bushel for the apples he harvests each day. For the first 42 bushels
by BTGmoderatorDC »
Steve works at an apple orchard and is paid by the bushel for the...
0
Last post by BTGmoderatorDC
Fri Nov 25, 2022 5:05 am
What is the units digit of x² - y² ?
by Brent@GMATPrepNow »
What is the units digit of x² - y² ? (1) x - y is a positive...
1
Last post by Brent@GMATPrepNow
Tue Nov 22, 2022 6:57 am
The monthly fee for a certain cellular telephone plan is $0.25 per minute for the first 200 minutes of calling time,
by BTGmoderatorDC »
The monthly fee for a certain cellular telephone plan is $0.25 per...
0
Last post by BTGmoderatorDC
Tue Nov 22, 2022 2:49 am
Pat is reading a book that has a total of 15 chapters. Has Pat read at least 1/3 of the pages in the book?
by BTGmoderatorDC »
Pat is reading a book that has a total of 15 chapters. Has Pat read...
0
Last post by BTGmoderatorDC
Fri Nov 18, 2022 10:49 pm
A group of N students will be randomly seated in a row of N chairs. What is the probability that Beth,
by BTGmoderatorDC »
A group of N students will be randomly seated in a row of N chairs....
0
Last post by BTGmoderatorDC
Fri Nov 18, 2022 3:39 am
In the figure above, two lines are tangent to a circle at points A and B. What is x?
by BTGmoderatorDC »
2015-06-09_1333.png In the figure above, two lines are tangent to a...
0
Last post by BTGmoderatorDC
Sat Nov 12, 2022 9:51 pm
If t is a positive integer and r is the remainder when
by BTGmoderatorDC »
If t is a positive integer and r is the remainder when t^2 + 5t + 6...
0
Last post by BTGmoderatorDC
Sat Nov 12, 2022 12:08 am
In the morning, Chris drives from Toronto to Oakville and in the evening he drives back from Oakville to Toronto on the
by BTGmoderatorDC »
In the morning, Chris drives from Toronto to Oakville and in the...
0
Last post by BTGmoderatorDC
Wed Nov 09, 2022 9:35 pm
Bert has $1.37 of loose change in his pocket — pennies ($0.01), nickels ($0.05), dimes ($0.10), and quarters ($0.25).
by AAPL »
Magoosh Bert has $1.37 of loose change in his pocket - pennies...
0
Last post by AAPL
Tue Nov 08, 2022 7:19 am
At the beginning of January 2003, Jill invested money in an account that collected interest, compounding monthly. Assume
by AAPL »
Magoosh At the beginning of January 2003, Jill invested money in an...
0
Last post by AAPL
Tue Nov 08, 2022 7:16 am
Poetry books make up what percent of the books on Beth’s bookshelf?
by BTGmoderatorDC »
Poetry books make up what percent of the books on Beth’s bookshelf?...
0
Last post by BTGmoderatorDC
Sun Nov 06, 2022 10:24 pm
When 1,000 children were inoculated with a certain vaccine, some developed inflammation at the site of the inoculation
by BTGmoderatorDC »
When 1,000 children were inoculated with a certain vaccine, some...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Nov 06, 2022 11:35 am
If x, y and z are distinct prime numbers, how many positive factors
by BTGmoderatorDC »
If x, y and z are distinct prime numbers, how many positive factors...
0
Last post by BTGmoderatorDC
Fri Nov 04, 2022 8:49 pm
Is the value of (a – b)(c – a)(d – a) > 0 ?
by BTGmoderatorDC »
Is the value of (a - b)(c - a)(d - a) > 0 ? (1) a, b, c, and d are...
0
Last post by BTGmoderatorDC
Wed Nov 02, 2022 11:38 pm
If x and y are positive integers, what is the value of xy?
by BTGmoderatorDC »
If x and y are positive integers, what is the value of xy? (1) The...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Oct 30, 2022 6:31 am
If r > 0 and s > 0, is r/s < s/r?
by BTGmoderatorDC »
If r > 0 and s > 0, is r/s < s/r? (1) r/(3s) = 1/4 (2) s = r...
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Last post by BTGmoderatorDC
Thu Oct 27, 2022 1:24 am
Adam, Cara, Carlos and Donna are friends. Cara and Carlos are the same age. Which of these 4 friends is the youngest?
by BTGmoderatorDC »
Adam, Cara, Carlos and Donna are friends. Cara and Carlos are the...
0
Last post by BTGmoderatorDC
Mon Oct 24, 2022 9:50 pm
Four elves were working on the bicycle assembly line at North Pole Central yesterday. Did one of the elves build at
by BTGmoderatorDC »
Four elves were working on the bicycle assembly line at North Pole...
0
Last post by BTGmoderatorDC
Sun Oct 23, 2022 7:35 pm
A repunit is a positive integer that contains only the digit 1. If the integer r is a repunit, is r prime?
by BTGmoderatorDC »
A repunit is a positive integer that contains only the digit 1. If...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Oct 23, 2022 11:28 am
x, 3, 1, 12, 8 If x is an integer, is the median of 5 numbers shown greater than the average of 5 numbers?
by BTGmoderatorDC »
x, 3, 1, 12, 8 If x is an integer, is the median of 5 numbers shown...
0
Last post by BTGmoderatorDC
Sun Oct 23, 2022 12:10 am
Does w - v = 0?
by Brent@GMATPrepNow »
Does w - v = 0? (1) w² - v² = 0 (2) wv < 0 Answer: B Source:...
1
Last post by Brent@GMATPrepNow
Wed Oct 19, 2022 6:32 pm
A line of people waiting to enter a theater consists of 7 separate and successive groups. The first person in each group
by BTGmoderatorDC »
A line of people waiting to enter a theater consists of 7 separate...
0
Last post by BTGmoderatorDC
Tue Oct 18, 2022 12:29 am
Two line l and k intersect at a point (4, 3). Is the product of their slopes -1?
by BTGmoderatorDC »
Two line l and k intersect at a point (4, 3). Is the product of their...
1
Last post by gmatter2012
Mon Oct 17, 2022 4:12 am
At the beginning of a certain week, a certain gift store had 550 candles in stock, which the store had purchased for
by BTGmoderatorDC »
At the beginning of a certain week, a certain gift store had 550...
0
Last post by BTGmoderatorDC
Sun Oct 16, 2022 7:23 pm
Is m divisible by 14 ? (m is a positive integer)
by BTGmoderatorDC »
Is m divisible by 14 ? (m is a positive integer) (1) The greatest...
0
Last post by BTGmoderatorDC
Sat Oct 15, 2022 5:14 pm
Is the product of two positive integers x and y divisible by 8?
by BTGmoderatorDC »
Is the product of two positive integers x and y divisible by 8? I. x...
0
Last post by BTGmoderatorDC
Fri Oct 14, 2022 12:30 am
Is the percent of the white collar employees employed at LampCo who are under 35 years old greater than the percent of b
by BTGmoderatorDC »
Is the percent of the white collar employees employed at LampCo who...
0
Last post by BTGmoderatorDC
Wed Oct 12, 2022 8:34 pm
Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl are twins and Beth and Duncan are also twins.
by BTGmoderatorDC »
Abe, Beth, Carl and Duncan are four siblings, among which Abe and...
0
Last post by BTGmoderatorDC
Mon Oct 10, 2022 9:24 pm
If the average (arithmetic mean) of six different numbers is 25, how many of the numbers are greater than 25?
by BTGmoderatorDC »
If the average (arithmetic mean) of six different numbers is 25, how...
0
Last post by BTGmoderatorDC
Sun Oct 09, 2022 9:07 pm
Of the shares of stock owned by a certain investor, 30 percent are shares of Company X stock and 1/7 of the remaining
by BTGmoderatorDC »
Of the shares of stock owned by a certain investor, 30 percent are...
1
Last post by swerve
Sun Oct 09, 2022 8:49 am
Kim and Sue each bought some roses and some daisies at the prices show above. If Kim bought the same total number of
by BTGmoderatorLU »
Source: Official Guide 2018.OG.06.339.q.jpg Kim and Sue each bought...
0
Last post by BTGmoderatorLU
Sat Oct 08, 2022 5:55 pm
A scientist recorded the number of eggs in each of \(10\) birds' nests. What was the standard deviation of the number of
by BTGmoderatorLU »
Source: Official Guide A scientist recorded the number of eggs in...
0
Last post by BTGmoderatorLU
Sat Oct 08, 2022 5:50 pm
By how many dollars was the price of a certain portable tape recorder reduced during a sale?
by BTGmoderatorDC »
By how many dollars was the price of a certain portable tape recorder...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Wed Oct 05, 2022 6:16 am
If p is a positive odd integer, what is the remainder when p is divided by 4 ?
by BTGmoderatorDC »
If p is a positive odd integer, what is the remainder when p is...
0
Last post by BTGmoderatorDC
Wed Oct 05, 2022 2:04 am
\(28\) students were each assigned to one of five classes: Anthropology, Biology, Geology, Musicology, and Sociology.
by AAPL »
Manhattan Prep \(28\) students were each assigned to one of five...
0
Last post by AAPL
Tue Oct 04, 2022 11:15 am
Abe, Beth, Carl and Duncan are four siblings, among which Abe and Carl are twins and Beth and Duncan are also twins.
by BTGmoderatorDC »
Abe, Beth, Carl and Duncan are four siblings, among which Abe and...
0
Last post by BTGmoderatorDC
Mon Oct 03, 2022 4:49 pm
What is the value of n in the equation: - 25 + 19 + n = s ?
by BTGmoderatorDC »
What is the value of n in the equation: - 25 + 19 + n = s ? (1) s = 2...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Fri Sep 30, 2022 5:48 am
A list kept at Town Hall contains that town's average daily temperature in Fahrenheit, rounded to the nearest integer,
by BTGmoderatorDC »
A list kept at Town Hall contains that town's average daily...
0
Last post by BTGmoderatorDC
Wed Sep 28, 2022 5:47 pm
Is m + z > 0?
by BTGmoderatorDC »
Is m + z > 0? (1) m - 3z > 0 (2) 4z - m > 0 OA C Source:...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Wed Sep 28, 2022 7:19 am
k, n, 12, 6, 17 What is the value of n in the list above?
by BTGmoderatorDC »
k, n, 12, 6, 17 What is the value of n in the list above? (1) k <...
0
Last post by BTGmoderatorDC
Sun Sep 25, 2022 8:18 pm
A certain circle in the xy-plane has its center at the origin. If P is a point on the circle, what is the sum of the
by BTGmoderatorDC »
A certain circle in the xy-plane has its center at the origin. If P...
0
Last post by BTGmoderatorDC
Fri Sep 23, 2022 3:31 am
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