Gre math prep

GRE Math Practice

Try a few of these tricky questions to gauge where you stand on the GRE Math section.

There will be more practice questions posted on this page so keep revisiting!

1. A rectangular airport runway is x feet long and y feet wide. If its

length is to be made 100 feet longer, by how many square feet will its area

be increased?

(A) xy + 100y (B) xy + 100 (C) 100 ly (D) 100l (E) 100 y

2. The probability of A’,s winning a hockey match is 3/2 times the

probability of B’,s winning a cricket match. The probability of C’,s winning a

race is twice the probability of B’,s winning the cricket match. What is the

maximum probability of A’,s winning the hockey match?

(A) ¼, (B) ½, (C) 2/3 (D)¾, (E) 1

3. In a certain city, the number of commuters decreased 15 per cent

from June to July and decreased 10 per cent from July to August. By

approximately what per cent would the number of commuters have to

increase from August to September for the number of commuters in

September to be equal to the number of commuters in June?

(A) 80% (B) 77% (C) 75% (D) 31% (E) 24%

4. If the distance required for an automobile to stop varies directly as

the square of its speed, what is the distance required for an automobile

driven at 60 km/hr to stop if it takes 10 meters to stop the automobile

moving at 20 km/hr.

(A) 30m (B) 36m (C) 60m (D) 90m (E) 120m

5. Technological advances in manufacturing radios reduced the

manufacturing cost of parts by 50 per cent and the cost of labour by 60 per

cent. If labour originally accounted for 3 times as much of the

manufacturing cost as parts and it is assumed that total cost consisted only

8. An 8 gram object is attached to a balance beam at a point 22 cm.

from the centre of the beam. If the beam is to remain horizontally balanced

how many grams must be attached to the other end of the beam 10 cms

away from the centre?

(A) 27.5 (B) 17.6 (C) 3.6 (D) 1.8 (E) 0.06

9. X can clean the garage in half the time it takes B. If they cleaned it

together in 3 hours, how many hours would it take form A to clean the

garage all by himself?

(A) 1 hour (B) 1 hour 20 minutes (C) 1 ½, hour (D) 2

hours (E) 3 hours

11. If 13 + x3 + 83 = 93, then x = ?

(A) -1 (B) 0 (C) 1 (D) 6 (E) 9

12. At a certain firm 81 per cent of the investments will mature in more

than 1 year and 27 per cent of the investments will mature in more than 2

years. What per cent of the investments of the firm will mature in more than

1 year but nor in not more than 2 years?

(A) 19% (B) 22% (C) 33% (D) 54% (E) 73%

13. If x is the greatest four- digit number such that the sum of the digits

is 23 and no two digit are the same, which of the following is NOT a digit of

(A) 9 (B) 8 (C) 7 (D) 6 (E) 0

14. On a 200 question test the total score is the number of questions

correctly minus 1/5th of the total number of questions answered incorrectly

or left unanswered. What is the minimum number of questions that must be

answered correctly to receive a total score of at least 100?

(A) 75 (B) 116 (C) 117 (D) 125 (E) 175

15. The averages speed of an automobile for the first half of a 100 km.

trip was 60 km/hr and from the second half was 90 km/hr. What was the

average speed in km/hr for the entire distance?

(A) 68 (B) 72 (C) 75 (D) 78 (E) 80

16. On a certain day, an employee worked from 8:02 a.m. until 4:27 p.

m. and took off ¾, hour for lunch. If the employee did not take any other

breaks, how many hours did the employee work for?

(A) 4.4 (B) 7.15 (C) 7.25 (D) 7.65 (E) 8.4

17. In stack A, invoices are assigned consecutive numbers, beginning

with 1. In stack B, invoices are assigned consecutive odd numbers,

beginning with 1. In stack C, invoices are assigned consecutive multiples of

3. If there are 25 invoices in each of these stacks, how many assigned

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