Test your basic knowledge |

GRE Math: Common Errors

Subjects : gre, math

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?
4:9. The ratio of the areas of two similar triangles equals the square of the ratio of the corresponding sides.
The steeper the slope.
441000 = 1 10 10 10 21 * 21
A reflection about the axis.

2. Which is greater? 27^(-4) or 9^(-8)
Pi is the ratio of a circle'S circumference to its diameter.
9 : 25
All numbers which can be expressed as a ratio of two integers. (All integers and fractions.) (-2 - 1 - .25 - 1/2)
27^(-4)

3. When the 'a' in a parabola is positive....
9 & 6/7
90
3 - -3
The curve opens upward and the vertex is the minimal point on the graph.

4. What is the name of set with a number of elements which cannot be counted?
2sqrt6
180 degrees
An infinite set.
180

5. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?
Diameter(Pi)
y = (x + 5)/2
10! / 3!(10-3)! = 120
An arc is a portion of a circumference of a circle.

6. Volume for a cylinder?
A circle centered on the origin with radius 8.
Area of the base X height = (pi)hr^2
A= I (1 + (r/c))^tC - where I is the investment - C is the number of times compounded annually - and t is the number of years.
Its divisible by 2 and by 3.

7. A cylinder has a surface area of 22pi. If the cylinder has a height of 10 - what is the radius?
71 - 73 - 79
The empty set - denoted by a circle with a diagonal through it.
(a + b)^2
1

8. What is the formula for computing simple interest?
A = I (1 + rt)
37.5%
(a - b)(a + b)
All real numbers which can'T be expressed as a ratio of two integers - positive and negative (pi - -sqrt3)

9. A number is divisible by 6 if...
5
2sqrt6
8
Its divisible by 2 and by 3.

10. What are complementary angles?
Two angles whose sum is 90.
An angle which is supplementary to an interior angle.
The set of output values for a function.
The longest arc between points A and B on a circle'S diameter.

11. If the 80th percentile of the measurements is 72degrees - about how many measurments are between 69 degrees and 72 degrees? Round your answer to the nearest tenth
83.333%
31 - 37
18
N! / (k!)(n-k)!

12. When the 'a' in the parabola is negative...
Angle/360 x 2(pi)r
12.5%
The curve opens downward and the vertex is the maximum point on the graph.
Even

13. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. In how many ways can the judges award the 3 prizes?
Members or elements
10! / (10-3)! = 720
9 & 6/7
2.4. We calculate the area (6) and then turn the triangle on its side and use x as the height to calculate again. (5x)/2=6

14. How many multiples does a given number have?
72
Infinite.
A subset.
Undefined

15. What are the integers?
All numbers multiples of 1.
4:9. The ratio of the areas of two similar triangles equals the square of the ratio of the corresponding sides.
4sqrt3. The triangle can be divided into two equal 30-60-90 triangles with side 6 as the side in which 6 = xsqrt3. So x =2sqrt3...
An algebraic expression is a combination of one of more terms. Terms in an expression are separated by either addition or subtraction signs. (3xy - 4ab - -5cd - x^2 + x - 1)

16. 1/8 in percent?
The greatest value minus the smallest.
12.5%
28. n = 8 - k = 2. n! / k!(n-k)!
12! / 5!7! = 792

17. Factor x^2 - xy + x.
The direction of the inequality is reversed.
x(x - y + 1)
A = pi(r^2)
2.4. We calculate the area (6) and then turn the triangle on its side and use x as the height to calculate again. (5x)/2=6

18. Length of an arc of a circle?
The set of output values for a function.
Angle/360 x 2(pi)r
4:9. The ratio of the areas of two similar triangles equals the square of the ratio of the corresponding sides.
II

19. From a box of 12 candles - you are to remove 5. How many different sets of 5 candles could you remove?
An isosceles right triangle.
12! / 5!7! = 792
53 - 59
The greatest value minus the smallest.

20. Simplify the expression [(b^2 - c^2) / (b - c)]
1.7
All numbers multiples of 1.
x(x - y + 1)
(b + c)

21. Can you add sqrt 3 and sqrt 5?
4sqrt3. The triangle can be divided into two equal 30-60-90 triangles with side 6 as the side in which 6 = xsqrt3. So x =2sqrt3...
No - only like radicals can be added.
F(x) - c
Divide by 100.

22. What is the ratio of the sides of a 30-60-90 triangle?
5
1:sqrt3:2
Even
A subset.

23. 10^6 has how many zeroes?
... the square of the ratios of the corresponding sides.
x(x - y + 1)
6
The interesection of A and B.

24. What is the slope of a vertical line?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

25. Which is greater? 64^5 or 16^8
All numbers multiples of 1.
16^8 - 64^5 = (4^3)^5 = 4^15 - 16^8=(4^2)^8 = 4^16
An infinite set.
1.0843 X 10^11

26. What are the real numbers?
4sqrt3. The triangle can be divided into two equal 30-60-90 triangles with side 6 as the side in which 6 = xsqrt3. So x =2sqrt3...
All the numbers on the number line (negative - rational - irrational - decimal - integer). All the numbers on the GRE are real. (-2 - 1 - .25 - 1/2 - pi)
Divide by 100.
413.03 / 10^4 (move the decimal point 4 places to the left)

27. What are the rational numbers?
All numbers which can be expressed as a ratio of two integers. (All integers and fractions.) (-2 - 1 - .25 - 1/2)
G(x) = {x}
3 - -3
4sqrt3. The triangle can be divided into two equal 30-60-90 triangles with side 6 as the side in which 6 = xsqrt3. So x =2sqrt3...

28. How many 3-digit positive integers are even and do not contain the digit 4?
71 - 73 - 79
4.25 - 6 - 22
288 (8 9 4)
6

29. 60 < all primes <70
Divide by 100.
4:5
The longest arc between points A and B on a circle'S diameter.
61 - 67

30. For what values should the domain be restricted for the function f(x) = sqrt(x + 8)
F(x + c)
8
The set of elements which can be found in either A or B.
The sum of digits is divisible by 9.

31. Which quadrant is the upper right hand?
I
[(7+ sqrt93) /2] - [(7 - sqrt93) / 2]
An angle which is supplementary to an interior angle.
A central angle is an angle formed by 2 radii.

32. What is the 'Restricted domain of a function'?
Even
No - the input value has exactly one output.
20.5
When the function is not defined for all real numbers -; only a subset of the real numbers.

33. What is the order of operations?
2 & 3/7
20.5
PEMDAS (Parentheses Exponents Multiplication/Division Addition/Subtraction)
An algebraic expression is a combination of one of more terms. Terms in an expression are separated by either addition or subtraction signs. (3xy - 4ab - -5cd - x^2 + x - 1)

34. 0^0
2 & 3/7
Undefined
6
Cd

35. 5/6 in percent?
The set of input values for a function.
83.333%
When we need to avoid having a zero in the denominator or avoid taking the square root of a number.
F(x-c)

36. What does the graph x^2 + y^2 = 64 look like?
72
The point of intersection of the systems.
An algebraic expression is a combination of one of more terms. Terms in an expression are separated by either addition or subtraction signs. (3xy - 4ab - -5cd - x^2 + x - 1)
A circle centered on the origin with radius 8.

37. 3/8 in percent?
A circle centered at -2 - -2 with radius 3.
37.5%
4096
Its last two digits are divisible by 4.

38. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82
(a + b)^2
Diameter(Pi)
Yes - because you can factor out a perfect square (36). Sqrt(36 x 2) = sqrt36 X sqrt2 = 6sqrt2.
70

39. The perimeter of a square is 48 inches. The length of its diagonal is:
4a^2(b)
The curve opens upward and the vertex is the minimal point on the graph.
F(x) - c
12sqrt2

40. A number is divisible by 3 if ...
52
The sum of its digits is divisible by 3.
90 degrees
72

41. The larger the absolute value of the slope...
The steeper the slope.
130pi
(amount of decrease/original price) x 100%
x = [(-b)+/- (sqrt b^2 - 4ac)]/2a

42. How many digits are there between the decimal point and the first even digit in the decimal equivalent of 1/[(2^8)(5^3)]
0
y = 2x^2 - 3
Even
The longest arc between points A and B on a circle'S diameter.

43. What is the intersection of A and B?
(base*height) / 2
A = pi(r^2)
x^(2(4)) =x^8 = (x^4)^2
The set of elements found in both A and B.

44. x^6 / x^3
The empty set - denoted by a circle with a diagonal through it.
An isosceles right triangle.
53 - 59
x^(6-3) = x^3

45. Which quadrant is the lower left hand?
A circle centered on the origin with radius 8.
A tangent is a line that only touches one point on the circumference of a circle.
71 - 73 - 79
III

46. The number of degrees in the largest angle of a triangle inscribed in a circle - in which the diameter of the circle is one side of the triangle.
90 degrees
[(7+ sqrt93) /2] - [(7 - sqrt93) / 2]
2sqrt6
1.0843 X 10^11

47. 25^(1/2) or sqrt. 25 =
1/(x^y)
1
5 OR -5
12! / 5!7! = 792

48. What is an exterior angle?
10
10! / (10-3)! = 720
An angle which is supplementary to an interior angle.
The graph of 3(x - 1)^2 is a translation (shift) of the graph one unit or space to the right.

49. What is the 'Solution' for a set of inequalities.
(12/2) x (sqrt15 / sqrt5) = 6sqrt3
1 & 37/132
20.5
The overlapping sections.

50. What is the 'Solution' for a system of linear equations?
The point of intersection of the systems.
3
31 - 37
The shortest arc between points A and B on a circle'S diameter.

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

GRE Math: Common Errors

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests