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Hi Mitch,The percent increase from x to y is equal to the percent increase from y to z.
Implication:
x/y = y/z
Thanks for responding.
Isn't percentage increase equation be the following?
(x-y)/x = (y-z)/y
- by bubbliiiiiiii
Tue Sep 01, 2015 4:18 am- Forum: Data Sufficiency
- Topic: MGMAT Advanced quant - Hybrid problem
- Replies: 7
- Views: 2332
MGMAT Advanced quant - Hybrid problem
If x, y, and z are all distinct positive integers and the percent increase from x to y is equal to the percent increase from y to z, what is x? (1) y is prime (2) z = 9
Manhattan Prep (2015-05-17). GMAT Advanced Quant (Kindle Locations 4099-4101). Manhattan Prep Publishing. Kindle Edition.
OA A
- by bubbliiiiiiii
Tue Sep 01, 2015 1:44 am- Forum: Data Sufficiency
- Topic: MGMAT Advanced quant - Hybrid problem
- Replies: 7
- Views: 2332
MGMAT Advanced quant - Hybrid problem
If x and y are positive integers greater than 1 such that x − y and are both even integers, which of the following numbers must be non-prime integers? I. x II. x + y III. y/x (A) I only (B) II only (C) III only (D) I and II only (E) I, II and III Manhattan Prep (2015-05-17). GMAT Advanced Quant (K...
- by bubbliiiiiiii
Mon Aug 31, 2015 10:37 pm- Forum: Problem Solving
- Topic: MGMAT Advanced quant - Hybrid problem
- Replies: 2
- Views: 1293
GCF - MGMAT
The greatest common factor of 16 and the positive integer n is 4, and the greatest common factor of n and 45 is 3. Which of the following could be the greatest common factor of n and 210?
3
14
30
42
70
OA D
- by bubbliiiiiiii
Fri Aug 28, 2015 3:40 am- Forum: Problem Solving
- Topic: GCF - MGMAT
- Replies: 3
- Views: 2022
The Emperor Augustus, it appears, commissioned an idealized sculpture portrait, the features of which are so unrealistic as to constitute what one scholar calls an "artificial face." A) so unrealistic as to constitute B )so unrealistic they constituted C )so unrealistic that they have con...
- by bubbliiiiiiii
Thu Aug 27, 2015 2:31 am- Forum: Sentence Correction
- Topic: so X as to and so X that
- Replies: 1
- Views: 1166
Hardiness Zones - Zones based on average winter temperature and the type of plants that survive temperatures. Zone 1 - coldest and Zone 13 - warmest. Zones ( I suppose hardiness zones) are closely corelated with another set of zones based on length of growing season. Minneapolis - Zone 4 Denver - Zo...
- by bubbliiiiiiii
Thu Aug 27, 2015 2:19 am- Forum: Critical Reasoning
- Topic: Hardiness Zones - Must Be True Question
- Replies: 5
- Views: 1785
Inequalities from Manhattan Advanced Quant
If abcd ≠0, is abcd < 0?
1. a/b > c/d
2. b/a > d/c
Manhattan Prep (2015-05-17). GMAT Advanced Quant (Kindle Locations 2464-2466). Manhattan Prep Publishing. Kindle Edition.
OA C
- by bubbliiiiiiii
Wed Aug 26, 2015 10:29 pm- Forum: Data Sufficiency
- Topic: Inequalities from Manhattan Advanced Quant
- Replies: 2
- Views: 1635
Integers ..
If x and y are positive integers, is y odd? (1) (y+2)!/x! is an odd integer. (2) (y+2)!/x! is greater than 2. Manhattan Prep (2015-05-17). GMAT Advanced Quant (Kindle Locations 1695-1697). Manhattan Prep Publishing. Kindle Edition. OA C Sorry for erroneously posting in wrong forum. Can somebody with...
- by bubbliiiiiiii
Wed Aug 26, 2015 12:56 am- Forum: Problem Solving
- Topic: Integers ..
- Replies: 6
- Views: 3148
- by bubbliiiiiiii
Tue Aug 25, 2015 10:36 pm- Forum: Problem Solving
- Topic: Inequality
- Replies: 2
- Views: 1227
As a result of a supernova explosion, every human being on Earth was bombarded on February 23, 1987, by about 100 billion neutrinos; fortunately, neutrinos are harmless elementary particles that are produced in nuclear reactions and that interact very weakly with matter. There are two dependent cla...
- by bubbliiiiiiii
Tue Aug 25, 2015 10:32 pm- Forum: Sentence Correction
- Topic: As a result of a supernova explosion, every human being on
- Replies: 5
- Views: 4966
Inequalities from Manhattan Advanced Quant
If x and y are integers and 4xy = x2y + 4y, what is the value of xy?
(1) y − x = 2
(2) x3 < 0
OA B
My question:
[spoiler]Why can't we cancel out y in question stem and work with a quadratic equation in x?[/spoiler]
- by bubbliiiiiiii
Tue Aug 25, 2015 4:35 am- Forum: Data Sufficiency
- Topic: Inequalities from Manhattan Advanced Quant
- Replies: 4
- Views: 1910
In Colorado subalpine meadows, non-native dandelions co-occur with a native flower, the larkspur. Bumblebees visit both species, creating the potential for interactions between the two species with respect to pollination. In a recent study, researchers selected 6 plots containing both species; all ...
- by bubbliiiiiiii
Tue Aug 04, 2015 4:00 am- Forum: Critical Reasoning
- Topic: In Colorado subalpine meadows
- Replies: 7
- Views: 6672
Can you please review my post above and elaborate?Brent@GMATPrepNow wrote:
Answer choices A, C and D are irrelevant since they have nothing to do with the actual composition of the submissions. ELIMINATE A, C and D
- by bubbliiiiiiii
Mon Aug 03, 2015 9:38 am- Forum: Critical Reasoning
- Topic: CR prep question
- Replies: 15
- Views: 12779
A manager at a local theme park has proposed doubling the number of attendants at the park's entrance gates, claiming the new attendants will alleviate line congestion. The manager reasons that, since the wait times at the entrance will be reduced from about thirty minutes to ten minutes, more peop...
- by bubbliiiiiiii
Mon Aug 03, 2015 6:08 am- Forum: Critical Reasoning
- Topic: very tough CR2..Please help....
- Replies: 2
- Views: 1478
To prevent a newly built dam on the Chiff River from blocking the route of fish migrating to breeding grounds upstream, the dam includes a fish pass, a mechanism designed to allow fish through the dam. Before the construction of the dam and fish pass, several thousand fish a day swam upriver during...
- by bubbliiiiiiii
Mon Aug 03, 2015 4:24 am- Forum: Critical Reasoning
- Topic: To prevent a newly built dam on the Chiff River from blockin
- Replies: 1
- Views: 4593