Search found 17 matches
Re: Practice Quant problem
For this question we have to know the following:
( x + y )^2 = x^2 + 2xy + y^2
( x - y )^2 = x^2 - 2xy + y^2
2^x / 2^x - 2 = 2^(x-(x-2)) = 2^2
Moving to the problem
2^(x^2 + 2xy + y^2) / 2^(x^2 - 2xy + y^2) = 2^4xy
We know xy = 1
So, 2^4(1) = 2^4 = 16.
Correct answer is D.
- by PhillipZhang87
Fri Sep 18, 2020 7:03 am- Forum: GMAT Math
- Topic: Practice Quant problem
- Replies: 4
- Views: 10410
The human nervous system and a telephone system superficially resemble each other, not only because the former carries
Sentence Correction
Re: The human nervous system and a telephone system superficially resemble each other, not only because the former carri
A / E can be eliminated because of improper usage of correlative conjuction not only , and B can be eliminated because of faulty Parallelism as because should be after both. D misplaced modifier superficially as well as, they refers to both the nuervous system and telephone system when we just want ...
- by PhillipZhang87
Fri Sep 18, 2020 6:52 am- Forum: Sentence Correction
- Topic: The human nervous system and a telephone system superficially resemble each other, not only because the former carries
- Replies: 1
- Views: 665
Science and observation indicate that auroras, such as those seen in the Arctic and Antarctic, appears in various
Sentence Correction
Re: Science and observation indicate that auroras, such as those seen in the Arctic and Antarctic, appears in various
Subject verb agreement gets rid of A / B need to use appear for plural subject auroras.
C is preferrable to D since we need to use essential modifier that as we want to say that the configurations are shaped by the earth's magnetic field.
Therefore, correct answer is C.
- by PhillipZhang87
Fri Sep 18, 2020 6:00 am- Forum: Sentence Correction
- Topic: Science and observation indicate that auroras, such as those seen in the Arctic and Antarctic, appears in various
- Replies: 1
- Views: 536
The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet
Sentence Correction
Re: The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet
This question is mainly testing Subject Verb Agreement. One of the many aspects refers to the global warming effect and not the ocean white caps and therefore, we need to use is instead of are. Eliminates A/B for D / E having been / being incorporated is redundant and incorrect. Therefore, answer is...
- by PhillipZhang87
Fri Sep 18, 2020 5:56 am- Forum: Sentence Correction
- Topic: The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet
- Replies: 1
- Views: 587
Japan has a land area similar to California but fully 128 million in population, where 23% are over the age of 65,
Sentence Correction
Re: Japan has a land area similar to California but fully 128 million in population, where 23% are over the age of 65,
This question tests comparison only C , E have the correct comparison b/w Japan's land area and California land area. E is preferred as when we refer to people whom is preferred to them as well as, the in Japan in C is redundant.
Therefore, correct answer is C.
- by PhillipZhang87
Fri Sep 18, 2020 5:52 am- Forum: Sentence Correction
- Topic: Japan has a land area similar to California but fully 128 million in population, where 23% are over the age of 65,
- Replies: 1
- Views: 469
Re: speed time and distance
So, we know that Rohan would be 16 minutes late if Shikha doesn't leave the house. Therefore, by her leaving they save 16 minutes. the rate that he is going is 60 km/hr so 16 minutes means that by her leaving it reduces the distance Rohan has to travel by 16 km. Since the venue and Shikha house is i...
- by PhillipZhang87
Fri Sep 18, 2020 5:40 am- Forum: GMAT Math
- Topic: speed time and distance
- Replies: 1
- Views: 10811
Re: Problem Solving Question
The best approach for a lot of algebra questions like these is to definitely to pick numbers and think logically. I r/s we know 0< numerator < 1 as well as, 1 < denominator < 2 so the answer definitely be less than 1. II rs choose r = 0.2 s = 1.1 rs = 0.22 < 1 so not the case III s - r choose r = 0....
- by PhillipZhang87
Fri Sep 18, 2020 5:28 am- Forum: GMAT Math
- Topic: Problem Solving Question
- Replies: 5
- Views: 12957
If 9 marbles were added to a jar of marbles, the number of marbles would be greater than 3 times the original number of
Problem Solving
Re: If 9 marbles were added to a jar of marbles, the number of marbles would be greater than 3 times the original number
x+9 = 3x
x = 4.5
Therefore x < 4.5 so that it's over 3x the original marble so answer is C.
Alternatively, you could just add 9 to the solutions and find the lowest answer that is three times the original solution.
- by PhillipZhang87
Tue Sep 15, 2020 5:58 pm- Forum: Problem Solving
- Topic: If 9 marbles were added to a jar of marbles, the number of marbles would be greater than 3 times the original number of
- Replies: 2
- Views: 518
- by PhillipZhang87
Tue Sep 15, 2020 5:54 pm- Forum: Admissions Success Stories
- Topic: My journey to a top business school...
- Replies: 9
- Views: 11757
Re: Vocabulary
As most have mentioned vocabulary isn't directly tested however, obviously increasing your vocabulary through reading articles and books would be pivotal towards success in verbal.
- by PhillipZhang87
Tue Sep 15, 2020 5:47 pm- Forum: GMAT Verbal & Essays
- Topic: Vocabulary
- Replies: 10
- Views: 15754
Re: Mixture replacement Problems:How to solve effectively and q
Water: Milk: Total
20: 80: 100 Original Porportion
15: 60: 75 3/4 * Original Porportion
40 : 60: 100 New porportion
2: 3 : 5
- by PhillipZhang87
Tue Sep 15, 2020 3:41 pm- Forum: GMAT Math
- Topic: Mixture replacement Problems:How to solve effectively and q
- Replies: 7
- Views: 12705
Re: AWA practice
Overall good essay! The essay was well - reasoned, argument was presented clear and concise, and you utilized transition words properly.
- by PhillipZhang87
Tue Sep 15, 2020 3:28 pm- Forum: GMAT Essays (AWA)
- Topic: AWA practice
- Replies: 6
- Views: 2840
- by PhillipZhang87
Tue Sep 15, 2020 3:26 pm- Forum: I just Beat The GMAT!
- Topic: 580 practice test to 760 on actual GMAT!
- Replies: 7
- Views: 19731
Re: How to improve from V37 to v40+
If your looking for high quality reading material then the Economist is pretty good. It has a broad range of topics as well as, the articles are eloquent and well-written.
- by PhillipZhang87
Tue Sep 15, 2020 3:24 pm- Forum: GMAT Verbal & Essays
- Topic: How to improve from V37 to v40+
- Replies: 6
- Views: 9475
Re: Idioms and Sentence Correction - a message from GMAC
Thanks for the information and keeping us informed about updates!
- by PhillipZhang87
Fri Aug 14, 2020 10:02 am- Forum: Sentence Correction
- Topic: Idioms and Sentence Correction - a message from GMAC
- Replies: 19
- Views: 31124