GRE Math

Submit question or correction: email me

Recommended

ETS   PowerPrep II   Cracking the GRE   Complete GRE Test Bundle
1,007 GRE Questions   Verbal Flash Cards Advanced Words   Math Flash Cards



For my reference

Trick of the Eye (interesting)

* my math cards coming soon

 

Information source

This is information and study material for the GRE. Most of this information has been compiled from multiple internet sources…to be used for my own preparation for the GRE.

The Math skills required for GRE quantitative reasoning section are of a basic standard that should be within the reach of a tenth grade student. You don’t need to learn up lots of new formulae but you will need to sharpen up your thinking skills.

Questions are of three main types:

  • Multiple choice problem solving (with one or more correct answers)
  • Numeric entry
  • Quantitative comparisons

You may be tested on basic arithmetic, algebra, geometry and a few miscellaneous topics (mainly data interpretation and applied math).

 

1. Of the following, which is greater than ½?

Indicate ALL such fractions.

A. 2/5
B. 4/7
C. 4/9
D. 5/11
E. 6/13
F. 8/15
G. 9/17

2. If an object travels at five feet per second, how many feet does it travel in one hour?

A. 30
B. 300
C. 720
D. 1800
E. 18000

3. What is the average (arithmetic mean) of all the multiples of ten from 10 to 190 inclusive?

A. 90
B. 95
C. 100
D. 105
E. 110

4. A cubical block of metal weighs 6 pounds. How much will another cube of the same metal weigh if its sides are twice as long?

A. 48
B. 32
C. 24
D. 18
E. 12

5. In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?

A. 6
B. 15
C. 24
D. 33
E. 54

6. A straight fence is to be constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. If a certain fence begins and ends with a post, which of the following could be the length of the fence in feet? (12 inches = 1 foot).

Indicate ALL such answers.

A. 17
B. 28
C. 35
D. 39
E. 50

7. ( √2 – √3 )² =

A. 5 – 2√6
B. 5 – √6
C. 1 – 2√6
D. 1 – √2
E. 1

8. 230 + 230 + 230 + 230 = {how to}

A. 8120
B. 830
C. 232
D. 230
E. 226

9. Amy has to visit towns B and C in any order. The roads connecting these towns with her home are shown on the diagram. How many different routes can she take starting from A and returning to A, going through both B and C (but not more than once through each) and not travelling any road twice on the same trip?

A. 10
B. 8
C. 6
D. 4
E. 2

10. In the figure above AD = 4, AB = 3 and CD = 9. What is the area of triangle AEC ?

A. 18
B. 13.5
C. 9
D. 4.5
E. 3

 

 

Answers
1. BFG
2. E
3. C
4. A
5. C
6. ABDE
7. A
8. C
9. B
10. D

 

 

1. Which of the following could be a value of x, in the diagram above?

Indicate ALL such values.

A. 10
B. 20
C. 30
D. 40
E. 50

2. Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes or 35 small cakes per hour. The kitchen is available for 3 hours and 20 large cakes and 700 small cakes are needed. How many helpers are required?

A. 10
B. 15
C. 20
D. 25
E. 30

3. Jo’s collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?

A. 5 : 1
B. 10 : 5
C. 15 : 2
D. 20 : 2
E. 25 : 2

4. A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?

A. 2.5π
B. 3π
C. 5π
D. 4π
E. 10π

5. Two sets of 4 consecutive positive integers have exactly one integer in common. The sum of the integers in the set with greater numbers is how much greater than the sum of the integers in the other set?

A. 4
B. 7
C. 8
D. 12
E. it cannot be determined from the information given.

6. A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 per cent larger than the original. By what percentage has the area of the logo increased?

A. 50
B. 80
C. 100
D. 125
E. 250

7. ABCD is a square of side 3, and E and F are the mid points of sides AB and BC respectively. What is the area of the quadrilateral EBFD ?

A. 2.25
B. 3
C. 4
D. 4.5
E. 6

8. If n ≠ 0, which of the following expressions could have a value less than n?

Indicate ALL such expressions.

A. 2n
B. n²
C. 2 – n

9. After being dropped a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reaches a height of 125 inches. How high (in inches) will it reach after its fourth bounce?

A. 20
B. 15
C. 8
D. 5
E. 3.2

10. n and p are integers greater than 1
5n is the square of a number
75np is the cube of a number.
The smallest value for n + p is

A. 14
B. 18
C. 20
D. 30
E. 50

 

 

Answers
1. BC

2. A
3. E
4. C
5. D
6. D
7. D
8. ABC
9. C
10. A

 

 

1. The distance from town A to town B is five miles. C is six miles from B. Which of the following could be the distance from A to C?

Indicate ALL such distances.

A. 11
B. 7
C. 1

2. √5 percent of 5√5 =

A. 0.05
B. 0.25
C. 0.5
D. 2.5
E. 25

3. If pqr = 1 , rst = 0 , and spr = 0, which of the following cannot be zero?
Indicate ALL such answers.

A. P
B. Q
C. R
D. S
E. T

4.

A. 1/5
B. 6/5
C. 6³
D. 64 / 5
E. 64

5. -20 , -16 , -12 , -8 ….
In the sequence above, each term after the first is 4 greater than the preceding term. Which of the following could not be a term in the sequence?

Indicate ALL such numbers.

B. 200
C. 440
D. 668
E. 762
F. 816
G. 902

 

6. For how many integer values of n will the value of the expression 4n + 7 be an integer greater than 1 and less than 200?

A. 48
B. 49
C. 50
D. 51
E. 52

7. In the following correctly worked addition sum, A,B,C and D represent different digits, and all the digits in the sum are different. What is the sum of A,B,C and D?

A. 23
B. 22
C. 18
D. 16
E. 14

8. 12 litres of water are poured into an aquarium of dimensions 50cm length, 30cm breadth, and 40cm height. How high (in cm) will the water rise?
(1 litre = 1000cm³)

A. 6
B. 8
C. 10
D. 20
E. 40

9. Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of P ?

A. 11/P + 6
B. P/11 +6
C. 17 – P/6
D. 17/P
E. 11.5P

 

 

Answers
1. ABC
2. B
3. ABC
4. E
5. EG
6. C
7. B
8. B
9. A

 

 

1. If a² = 12, then a4 =

A. 144
B. 72
C. 36
D. 24
E. 16

2. If n is even, which of the following cannot be odd?

Select all that apply.

A. n + 3
B. 3n
C. n² – 1
D. 2(n + 3)

3. One side of a triangle has length 8 and a second side has length 5. Which of the following could be the area of the triangle?

Select ALL that apply.

A. 24
B. 20
C. 5

4. A certain animal in the zoo has consumed 39 pounds of food in six days. If it continues to eat at the same rate, in how many more days will its total consumption be 91 pounds?

A. 12
B. 11
C. 10
D. 9
E. 8

5. A perfect cube is an integer whose cube root is an integer. For example, 27, 64 and 125 are perfect cubes. If p and q are perfect cubes, which of the following will not necessarily be a perfect cube?

A. 8p
B. pq
C. pq + 27
D. -p
E. (p – q)6

6. Half the people on a bus get off at each stop after the first, and no one gets on after the first stop. If only one person gets off at stop number 7, how many people got on at the first stop?

A. 128
B. 64
C. 32
D. 16
E. 8

7. n is an integer chosen at random from the set

{5, 7, 9, 11 }

p is chosen at random from the set

{2, 6, 10, 14, 18}

What is the probability that n + p = 23 ?

A. 0.1
B. 0.2
C. 0.25
D. 0.3
E. 0.4

8. A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further 10% reduction on the discounted price. If a staff member buys the dress what will she have to pay in terms of D ?

A. 0.75D
B. 0.76D
C. 0.765D
D. 0.775D
E. 0.805D

9. All the dots in the array are 2 units apart vertically and horizontally. What is the length of the longest line segment that can be drawn joining any two points in the array without passing through any other point ?

A. 2
B. 2√2
C. 3
D. √10
E. √20

10. If the radius of the circle with centre O is 7 and the measure of angle AOB is 100, what is the best approximation to the length of arc AB ?

A. 9
B. 10
C. 11
D. 12
E. 13

 

 

Answers
1. A
2. BD
3. BC
4. E
5. C
6. B
7. A
8. C
9. E
10. D

 

 

1. Sheila works 8 hours per day on Monday, Wednesday and Friday, and 6 hours per day on Tuesday and Thursday. She does not work on Saturday and Sunday. She earns $324 per week. How much does she earn in dollars per hour?

A. 11
B. 10
C. 9
D. 8
E. 7

2. ABCD is a parallelogram. BD = 2. The angles of triangle BCD are all equal. What is the perimeter of the parallelogram?

A. 12
B. 9√3
C. 9
D. 8
E. 3√3

3. If the product of 6 integers is negative, at most how many of the integers can be negative?

A. 2
B. 3
C. 4
D. 5
E. 6

4. If a positive integer n, divided by 5 has a remainder 2, which of the following must be true?

Select ALL such statements.

A. n is odd
B. n + 1 cannot be a prime number
C. (n + 2) divided by 7 has remainder 2
D. n + 3 is divisible by 5

5. A solid cube of side 6 is first painted pink and then cut into smaller cubes of side 2. How many of the smaller cubes have paint on exactly 2 sides?

A. 30
B. 24
C. 12
D. 8
E. 6

6. The slope of the line passing through the point (5,5) is 5/6. All of the following points could be on the line except

A. (2.5, 2)
B. (11, 10)
C. (8, 7.5)
D. (-1, 0)
E. (-7, -5)

7. In the figure above the square has two sides which are tangent to the circle. If the area of the circle is 4a²π, what is the area of the square?

A. 2a²
B. 4a
C. 4a²
D. 16a²
E. 64a²

8. A triangle has a perimeter 13. The two shorter sides have integer lengths equal to x and x + 1. Which of the following could be the length of the other side?

Select as many as are correct.

A. 4
B. 6
C. 8

9. A machine puts c caps on bottles in m minutes. How many hours will it take to put caps on b bottles?

A. 60bm/c
B. bm/60c
C. bc/60m
D. 60b/cm
E. b/60cm

10. Paint needs to be thinned to a ratio of 2 parts paint to 1.5 parts water. The painter has by mistake added water so that he has 6 litres of paint which is half water and half paint. What must he add to make the proportions of the mixture correct?

A. 1 litre paint
B. 1 litre water
C. ½ litre water and one litre paint
D. ½ litre paint and one litre water
E. ½ litre paint

 

 

Answers
1. C
2. D
3. D
4. D
5. C
6. A
7. D
8. B
9. B
10. A