Archive for the GRE Math Category
Posted on July 5, 2011 by GRE Tutor
This blog post highlights numerous ways you can prepare for all prominent and complicated competition exams such as GRE, GMAT etc. to ensure that you’ll obtain a master degree from an elite international university abroad. The way of preparation varies from a student to the student as some prefer taking tuition, whereas other opts for self – learning. Self learning is the best option and can also deliver the expected results if combine it with an efficient GRE tutoring. An experienced GRE tutor will help you to score high and be in 95th or 98th percentile group.
Certainly, GRE tutoring classes not only provide perfect coaching to receive admission in good colleges but also boost your confidence to deliver the best performance. To crack any interview successfully, both confidence and scores matter a lot. Even if you cannot attend a coaching personally, you can take help of an online GRE tutor and take the tutoring while sitting at home. There are many GRE Preparation websites that are offering online practice tests free of cost to check the knowledge of the student.
Online tutoring is again for self-motivated students who can perform and score high in GRE as their chosen GRE tutor will help in certain concepts and make testing strategy. You don’t have to put much effort in searching a good GRE tutor for you, just sign up for online GRE preparation sessions. Generally, such sessions are conducted on the hourly basis and some of them provide free coaching for first few hours. Test the teaching technique of the GRE tutor and join the appropriate one.
Posted on May 4, 2010 by GRE Tutor
31-45 Directions: Each of the questions31 -40 consists of two quantities, one in Column A and one in Column B. There may be additional information, centered above the two columns, that concerns one or both of the quantities. A symbol that appears in both columns represents the same thing in Column A as it does in Column B. You are to compare the quantity in Column A with the quantity in Column B and decide whether:
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(A) The quantity in Column A is greater.
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(B) The quantity in Column B is greater.
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(C) The two quantities are equal.
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(D) The relationship cannot be determined from the information given.
____________________________________________________________________________
Column A Column B
31. 24 42
Answer C
____________________________________________________________________________
32. 2x + y > 10
4y + 2y 40
Answer D
____________________________________________________________________________
33. The area of a square is 25
The perimeter of the square 100
Answer B
____________________________________________________________________________
34. 3 – (1/9 ) (8/3) + (1/9)
Answer A
____________________________________________________________________________
35. The number of hours in 3 days The number of months in 6 years
Answer C
Posted on April 22, 2010 by GRE Tutor
21. The lowest fraction in ½, ¾, 5/6, 7/12, 2/5 is:
- ½
- 7/12
- 5/6
- 2/5
- ¾
Ans. D
22. A man travels a certain distance at the rate of 12 km/hr. and returns back to the starting point at the rate of 15 km/hr. His average speed during the whole journey is:
- 13.5 km/hr
- 13 1/3 km/hr
- 12 2/3 km/hr
- 14 km/hr
- 13 2/3
Ans. B
23. Insert the missing number:
5, 12, 9, 16, 13, 20, ………
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27
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23
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17
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26
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28
Ans. C
Posted on April 5, 2010 by GRE Tutor
11. If 2n = Ѵ 64, then the value of n is:
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2
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4
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6
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8
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12
Ans . B
12. The value of Ѵ0.121 is:
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0.11
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1.1
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0.347
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0.011
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0.0347
Ans. C
13. The smallest number of 4 digits, which is a perfect square, is:
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1000
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1016
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1024
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1036
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1121
Ans. C
Posted on March 24, 2010 by GRE Tutor
The GRE Quantitative Reasoning Test measures problem-solving ability, focusing on basic concepts of arithmetic, algebra, geometry and data analysis. It covers questions on Quantitative Comparison, Problem Solving and, Data Interpretation.
1. The sum of first five prime numbers is
A. 11
B. 15
C. 18
D. 28
E. 41
Ans. C
2. The H.C.F. and L.C.M. of two numbers are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44. The other number is:
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33
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66
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132
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264
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528
Ans. C
Posted on October 23, 2009 by GRE Tutor
Sometimes applying common sense or backdoor strategies will get you to the correct answer more quickly and easily. The key is to be open to creative approaches. Often this involves taking advantage of the question format. These three methods are extremely useful when you don’t see – or would rather not use – the textbook appraoch to solving a question.
Picking Numbers
Picking numbers is a handy strategy for “abstract” problems – ones using variables either expressed or implied – rather than numbers. An expressed variable appears in the question (”Jane had x apples and 3 oranges…”). Questions with implied variables describe a problem using just numbers, but the only way to solve the problem is by setting up an equation that uses variables.
Problems that lend themselves to the picking numbers strategy involve simple math, but the variables make the problem complex. They include those where both the question and the answer choices have variables, expressed or implied; where the problem tests a number property you don’t recall; or where the problem and the answer choices deal with percents or fractions
Step 1. Pick Simple Numbers
These will stand in for the variables.
Step 2. Try Them Out
Try out all the answer choices using the numbers you picked, eliminating those that gave you a different result.
Step 3. Try Different Values
If more than one answer choice works, use different values and start again.
Posted on October 22, 2009 by GRE Tutor
If you’re considering applying to graduate school, then you’ve already seen all the math you need for the GRE – in junior high. The only problem is, you may not have seen it lately. When was the last time you had to add a bunch of fractions without a calculator? The math that appears on the GRE is almost identical to the math tested on the SAT or ACT. You don’t need to know trigonometry. You don’t need to know calculus.
No matter how much your memories of junior high algebra classes have dimmed, don’t panic. The GRE tests a limited number of core math concepts in predictable ways. Certain topics come up in every test, and, chances are, these topics will be expressed in much the same way; even some of the words and phrases appearing in the questions are predictable. Since the test is so formulaic, we can show you the math you’re bound to encounter. Practice on test-like questions will prepare you for the questions you will see on the actual test.
Here is a checklist of the core math concepts you’ll need to know GRE tutoring. These concepts are vital, not only because they are tested directly on every GRE, but also because you need to know how to perform these simpler operations in order to perform more complicated tasks. For instance, you won’t be able to find the volume of a cylinder if you can’t find the area of a circle. We know the math operations on the following list are pretty basic, but make sure you know how to do them.
- GRE math basics
- Add, subtract, multiply & divide fractions
- Convert fractions to decimals, and vice versa
- Add, subtract, multiply & divide signed numbers
- Plug numbers into algebraic expressions
- Solve a simple algebraic equation
- Find a percent using the percent formula
- Find an average
- Find the areas of rectangles, triangles and circles
Posted on September 30, 2009 by GRE Tutor
You must follow two simple rules while multiplying or dividing integers while taking a GRE test – multiply or divide as you would normally and determine the sign (positive or negative) by using the following rules:
Multiplying
Posted on September 25, 2009 by GRE Tutor
Equation Solving
Isolate the variable by performing the same operation to both sides of the equation
Tip: What you do to one side of the equation, you must do to the other side.
Examples:
- x + 7 = 11
subtract 7 from both sides and you get
x = 4
- x – 3 = 12
add 3 to both sides and you get
x = 15
- 5x = 30
divide both sides by 5 and you get
x = 6
- 3x + 7 = 19
subtract 7 from both sides and you get
3x = 12
divide both sides by 3 and you get
x = 4
- 2x + 6 = 7x – 24
subtract 2x from both sides and you get
6 = 5x – 24
add 24 to both sides and you get
30 = 5x
divide both sides by 5 and you get
x = 6
- 3(2x-1) + 4x – 11 = 8
expand the equation and you get
6x – 3 + 4x – 11 = 8
simplify the equation and you get
10x – 14 = 8
add 14 to both sides and you get
10x = 22
divide both sides by 10 and you get
x = 2.2
Posted on September 10, 2009 by GRE Tutor
Find below a review, or refresher, for the subject of Math for the GRE examination. Quick glance at the following review will help recall many a things and smoothly sail across the GRE examination:
- Integers
Positive & Negative whole numbers including zero are integers. For example, ?3, ?2, ?1, 0, 1, 2, 3, 4, are integers.
- Rational Numbers
Any number that can be expressed as a ratio is a rational number. For example, 7.5 or 22/7.
- Order of operations
In an expression, always perform the calculations inside the parentheses first, then exponents, then multiplication, division, addition and finally subtraction. Thus, (2
