You may feel confident with the most commonly tested grammar rules on the GMAT Sentence Corrections - subject-verb agreement, verb tense, pronoun reference, pronoun number, misplaced modifiers, parallelism, idioms, false comparisons, and quantities. It’s hard to imagine any other grammar rules that could possibly be tested, but you can bet the GMAT test writers are pretty exhaustive. Here are four grammar rules that don’t receive as much attention; you’ll need to master these if you’re going for a top score.

1. Subjunctive Mood

You won’t see the subjunctive mood tested on college entrance exams like the SAT and ACT; it’s purposely reserved for the GMAT for good reason. Most of the English verbs we use are in the indicative mood - that is, verbs that have happened, are happening, or will happen. The subjunctive mood is used to express wishes or possibilities that have not happened.

The most common subjunctive verb that you might encounter is were, the subjunctive form of was. **Example 1:** If he were athletic, he could make the football team. (He is not actually athletic, so the verb communicates an idea that does not really exist).

Notice that “If he was athletic…” would be incorrect, even though you may not reconize such an error in speech or writing. **Example 2:** The teacher requires...

### GMAT Grammar

### How to score well in GMAT Number properties?

GMAT Number properties may sound scary, but they just constitute elementary mathematical principles. You probably know most of these principles by memory; if not, you could easily execute a calculation to ascertain them. The best option, though, is to study these principles enough that they seem intuitive. The GMAT Quantitative section is all about saving time; making number theory second nature will definitely save you some valuable seconds.

1.Odds and Evens

Addition

Even + even = even (12+14=36)

Odd+ Odd = even (13+19=32)

Even + Odd = odd (8 + 11 = 19)

To more easily remember these, just think that a sum is only odd if you add an even and an odd.

Multiplication

Even x even = even (6 x 4 = 24)

Odd x odd = odd (5 x 3 = 15)

Even x odd = even (6 x 5= 30)

To more easily remember these, just think that a product is only odd if you multiply two odds.

Example Question

If r is even and t is odd, which of the following is odd?

A. rt

B. 5rt

C. 6...

### GMAT Trap - Wordy and Awkward but still correct

**Categories**: Sentence Correction

Some of our best students have their grammar rules down pat. They can talk for hours about adjective clauses, dangling modifiers, gerunds, and the subjunctive, but they’re so busy checking to make sure that all the sentence parts fit into place that they forget to read the sentence for meaning. Consider this example:

Most studies approximate that 70 percent of individuals with an amputation experience phantom sensations in the amputated limb, often in the form of pain that is identical to the pain that they typically experienced when the limb was still attached to the body but contorted in an unnatural position.

(A) that is identical to the pain that they typically experienced when the limb was still attached to the body but

(B) that is identical to the pain that they typically experienced when that limb was still attached to the body but that was

(C) that was identical to the pain that they typically experienced when the limb was still attached to the body but was

(D) identical to the pain that they typically experienced when that limb had still been attached to the body but that had been

(E) identical to the pain that they would be...

### Three Types of GMAT Profit and Loss Problems

You will encounter the following three types of Profit/Loss problems in the GMAT:

Profit/loss as percentage of Cost Price

In this case you will be given the cost price and sales price, and will be asked to simply calculate the profit/loss incurred by the seller by entering into the given transaction. This will be done by dividing the difference between the Sales Price and the Cost Price by the Cost Price. To convert the decimal into a percentage, you will multiply it by 100.

Profit Percentage = ((Sales Price - Cost Price)/Cost Price) x 100

Selling price = Z x (Cost price)

Where Z is any positive number. When Z < 1 we have a loss. When Z = 1 we have neither profit nor loss. When Z > 1 we have a profit.

Profit or Loss % = (Z - 1) x 100.

Selling price = [(Y / 100) + 1]x (Cost price)

Where Y is the profit or loss percentage. When Y < 0 we have a loss. When Y = 0 we have neither profit nor loss. When Y > 0 we have a profit.

Profit/loss as percentage of Sales Price

Sometimes the problem will be worded differently and will require the test taker to calculate...

### How to score well in GMAT Number properties?

GMAT Number properties may sound scary, but they just constitute elementary mathematical principles. You probably know most of these principles by memory; if not, you could easily execute a calculation to ascertain them. The best option, though, is to study these principles enough that they seem intuitive. The GMAT Quantitative section is all about saving time; making number theory second nature will definitely save you some valuable seconds.

1.Odds and Evens

Addition

Even + even = even (12+14=36)

Odd+ Odd = even (13+19=32)

Even + Odd = odd (8 + 11 = 19)

To more easily remember these, just think that a sum is only odd if you add an even and an odd.

Multiplication

Even x even = even (6 x 4 = 24)

Odd x odd = odd (5 x 3 = 15)

Even x odd = even (6 x 5= 30)

To more easily remember these, just think that a product is only odd if you multiply two odds.

Example Question

If r is even and t is odd, which of the following is odd?

A. rt

B. 5rt

C. 6...

### How to prepare for the GMAT in 3 months?

**Categories**: GMAT Study Plan

Knewton: At Knewton, we generally recommend a prep period of around three months for GMAT Preparation. It’s enough time to build a solid foundation in critical areas of GMAT study, but not so long that you burn out by the rigorous focus and training.

Here is the 3 Month GMAT Prep Plan:

Week 1: Take a diagnostic practice test to see where you stand overall. Learn the basic parameters of each section including scoring and question types.

Weeks 2 – 4: Do as many practice problems as possible for each section and read explanations for any wrong answers. The goal is not just to see whether you are better at Verbal or Quant, but specifically which sections (Critical Reasoning, Sentence Correction) and which question types (strengthening arguments, usage of idioms) are the most difficult for you.

Weeks 4 – 8: Now that you have a lot of practice questions under your belt, you want to focus on the...

### (GMAT 800) Conventional wisdom holds that financial markets

**Categories**: GMAT 800 Reading Comprehension

Conventional wisdom holds that financial markets are informationally efficient—that stocks are always priced and traded at the intrinsic value of their underlying assets. Thus, investors cannot expect to achieve returns consistently in excess of average returns, given information that is publicly available at the time, without taking on large economic risks akin to gambling risks. In other words, one can only obtain higher returns by purchasing riskier investments, and not through expert timing or speculative stock selection. There are three major interpretations of this efficient market hypothesis: Weak Efficient Market Hypothesis (EMH), which holds that current prices for assets, such as stocks, bonds, and property, reflect all past prices, Semi-strong EMH, which argues that prices change instantly to reflect all new public information (such as news of a take-over or a change in fiscal policy), and Strong EMH, which claims that prices adjust perpetually to reflect hidden, insider information not yet made public.

Weak EMH holds that technical analysis, the analysis of past stock performance, will not consistently produce excess returns because future price movements are only determined by...

### GMAT is famous for using your own momentum against you

Like a tae kwon do blackbelt or an icy road, the GMAT is perhaps most famous for its ability to use your own momentum against you. Few places is this as evident as on Critical Reasoning questions, in which the most common way to answer incorrectly is to allow your subconscious mind to lead you to a slightly-out-of-scope conclusion that the psychological warriors at GMAC have already anticipated you’d conclude. Accordingly, to perform well on Critical Reasoning questions it is, well, critical that you pay particular attention to the narrow scope of the conclusion. As an example, consider the question:

Poor physical fitness among children has become an epidemic among American children. In Europe, however, where schoolchildren participate in calisthenics and other athletic activities on a daily basis while at school, children are significantly more fit. Tests show that European students have superior strength and agility, and that they are significantly more likely than are American children to maintain a healthy lifestyle throughout their lives. Therefore, we must conclude that American children can become more...

### GMAT Data Sufficiency Strategy - The Obvious Answer Trap

**Categories**: Data Sufficiency

Data Sufficiency questions are supposed to be hard; more so than any other question type they tend to represent a chess match between you and the author, as the author has two chances to get you to make a mistake. She won’t likely waste either statement giving you an easy pass – the questions have to elicit something from you in terms of efficiency or ingenuity in order to answer them correctly, so if an answer choice seems obvious within 15-20 seconds and you can’t spot a trap, well, you just fell into the trap. Consider the question:

What is the value of x?

1) 3x + 2y = 15

2) y = (-3/2) (x – 5)

This should pretty obviously be C.

Two equations, two variables, neither works alone but both work together, right?

But that is too easy, and the GMAT won’t often give you the answer that quickly. Much as though the author had moved a pawn...

### Top 10 Tips to Ace GMAT Data Sufficiency

Ever heard of a Math problem that you actually don't have to solve. If you have just started your GMAT prep, then this can be confusing. Don't worry! With some practice, your mind will be trained to think like a DS Wizard. Follow these 10 tips and you will be on your way to mastering GMAT Data Sufficiency.

1. Familiarize with the Answer Choices

No excuses: On Data Sufficiency, they’re always the same! Know in the blink of an eye what choice C is. On test day, if you find that Statement 1 is insufficient, be able to cross out choices A and D without hesitation.

2. Takes notes efficiently

Each statement alone will be sufficient if both of the statements on their own contain all the information necessary to answer the question. The statements will be sufficient together if they contain every piece of necessary information between them. Take the area of a parallelogram: Do you need to know every side length to determine the area? If you have every side length, can you find the area?

3. Don’t look at the statements together.

Statement 2 may tell you that x is negative, but that fact has no bearing on Statement 1 when viewed by itself. Explore all the possibilities offered by each statement individually. If you’ve...

### Understanding "Of" for GMAT Quant and Verbal Sections

One of the smallest and least noteworthy words in the English language, the word “of” is crucial to your success on the GMAT, on both the quantitative and verbal sides of the exam. It is of great importance that you recognize these two common appearances of, and traps set by, the word **“of“**:

1) Sentence Correction

In Sentence Correction questions, the word **“of”** is usually employed as a modifier, which the GMAT often throws in to lengthen sentences and distract you from subject-verb agreement errors. Consider the following items:

The number **of** applicants to business schools are increasing given the current economic climate.

The House **of** Representatives are meeting this week to continue working on an environmental bill.

In each instance, the subject is actually the singular noun before the word “of” – “of applicants to business schools” just tells us “which number?”, and “of Representatives” simply indicates “which House?”. The authors of the GMAT know that examinees are often unsure of which noun to choose as the subject; by using the word “of” to set up modifiers with multiple nouns, the writers can exacerbate this problem. If you...

### Set A consists of integers -9, 8, 3, 10, and J; Set B consists of integers -2, 5, 0, 7, -6,

Set A consists of integers -9, 8, 3, 10, and J; Set B consists of integers -2, 5, 0, 7, -6, and T. If R is the median of Set A and W is the mode of set B, and R^W is a factor of 34, what is the value of T if J is negative?

(A) -2

(B) 0

(C) 1

(D) 2

(E) 5

Solution

This problem demonstrates a helpful note about statistics problems – quite often the key to solving a stats problem is something other than stats: number properties, divisibility, algebra, etc. The statistics nature of these problems is often just a way to make a simpler problem look more difficult.

Here, the phrase “factor of 34? should stand out to you, as there are only four factors of 34, so you can narrow down the possibilities pretty quickly to 1, 2, 17, and 34. And because the number in question must be an exponential term that becomes a factor of 34, it’s even more limited: 2, 17, and 34 can only be created by one integer exponent – “itself” to the first power.

The base of that exponent is going to be the median of Set A, and because we know that the median of Set A will be 3 (a negative term for variable J means that 3 will be the middle term), the question becomes that much clearer. 3^W can only be a factor of 34 if it’s set equal to 1, and the only way to do that is for W to be 0. REMEMBER: anything to the power of...

### Proportions

**Categories**: Ratio and Proportion

A proportion is represented by two ratios which are equated to each other. In GMAT Quant questions, we would be presented with one variable and three values for proportions. Reduce the ratio in either side to the lowest possible value before cross-multiplying.

For example , a proportion can be presented as a/b = c/d or a:b = c:d

So as per our strategy reduce a/b to the smallest possible fraction

ex: 24/10 should be translated to 12/5

GMAT Proportion: A football field is 9600 square yards. If 1200 pounds of fertilizer are spread evenly across the entire field, how many pounds of fertilizer were spread over an area of the field totaling 3600 square yards?

A. 450

B. 600

C. 750

D. 2400

E. 3200

The key word here is “spread evenly”. This implies that the relationship of fertilizer per square foot is uniform, and you can set equal the relationship of the wholes to the relationship of the parts.

A/F = 9600/1200 = 3600/x

Clearly, we can eliminate the zeros on the left side:

9600/1200 = 3600/x

96/12 = 3600/x

Then we can divide 96/12:

8 = 3600/x

Here, we can still reduce left-to-right, by canceling 4 in both:

2 = 900/x

Oh wait! There’s more! Both 2 and 900 are divisible by 2!

...

### 4 Must Read GMAT CAT Tips

**Categories**: GMAT Tips

CAT environment, especially GMAT CAT environment is different from your traditional paper based exams. Remember the following tips before you write your GMAT

1) Don't Stare at the Computer

First, you will find that you are spending a lot of time looking between the screen in front of you and your dry erase board. USE YOUR PEN AND DRY ERASE BOARD (but do not waste valuable time writing needless things down). One of the worst things you can do is to waste time staring at the screen. Do not make this mistake. Instead, you should get in the habit of immediately writing down ABCDE on your board for every question (When studying, I used pencils and paper, but on test day you will have dry erase markers and a laminated sheet that you can use to write things down). This should be a habit as you study for the GMAT, they don't give you material to write things down for nothing.USE IT! This way, you can immediately eliminate answers that you know are incorrect (And on a separate...

### GMAT Fractions - Don't get lost in the calculations

Have you wondered how writers can make a seemingly simple GMAT topic like fractions into time-consuming calculations. One strategy that GMAT test takers must adopt to simplify the calculations. For example

Dividing by 5 is the same as multiplying by 2/10. For example:

• 840/5 = ?

• 840/5 = 840*(2/10) = 84*2 = 168

Multiplying or dividing by 10’s and 2’s is generally easier than using 5’s. 90% of the time, fractions will be easier to perform arithmetic. Decimals are sometimes more useful when comparing numbers relative to one another, such as in a number line, but these questions are the exception. Even if given a decimal (or percent) looks easy, quickly convert to a fraction. Some common ones to memorize:

• 1/9 = 0.111 repeating

• 1/8 = 0.125

• 1/7 = ~0.14

• 1/6 = 0.166 repeating

• 1/5 = 0.20

• 1/4 = 0.25

• 1/3 = 0.333 repeating

• 1/2 = 0.5 repeating

Note: Multiples of these, such as 3/8 (0.375) are also important to remember, but can easily be derived by multiplying the original fraction (1/8 * 3 = 3/8 = 0.125 * 3 = 0.375)

Denominators are super important. A denominator of a reduced fraction with a multiple of 7 will not have a finite...

**GMAT 120 Point Improvement**

Filter by GMAT Topic

**GMAT Courses**- Absolute Value
- Critical Reasoning
- Data Interpretation
- Data Sufficiency
- Descriptive Statistics
- Equations
- Exponents
- General Strategies
- Geometry Problems
- GMAT FAQ
- GMAT Myth
- GMAT Preparation
- GMAT Quant
- GMAT Score
- GMAT Study Plan
- GMAT Tips
- GMAT Verbal
- Grammar Basics
- Idioms
- Inequalities
- Inference
- Interest Problems
- Logical Structure
- Mean
- Median
- Misplaced Modifiers
- Mode
- Modifying Phrases
- Number Properties
- On Exam Day
- Parallel Construction
- Paraphrasing Argument
- Percents
- Permutation and Combination
- Possesive pronoun
- Prime Numbers
- Problem Solving
- Process of Elimination
- Profit and Loss
- Pronoun Errors
- Quantity Words
- Rate Problems
- Ratio and Proportion
- Reading Comprehension
- Rectangular Solids and Cylinders
- Scope
- Sentence Correction
- Sets
- Standard Deviation
- Strengthen Argument
- Style and Tone
- Subject Verb - Agreement
- Triangles
- Venn Diagrams
- Voice
- Weaken Argument
- Word Problems
- Work Problems