Search found 20 matches
GMATPrep 1- Sequence of a set
For every integer between 1 and 10, inclusive, the kth term of a sequence is given by (-1)Ë„(k+1)* (1/2)Ë„k. If T is the sum of the first 10 terms, T=
A. greater than 2
B. between 1 and 2
C. between 1/2 and 1
D. between 1/4 and 1/2
E. less than 1/4
- by Mjkourtis
Mon Nov 26, 2012 6:51 am- Forum: Problem Solving
- Topic: GMATPrep 1- Sequence of a set
- Replies: 1
- Views: 951
Rate Problem- GMATPrep 1
6 machines, working at the same rate, complete a job in 12 days. How many additional machines can complete the job in 8 days?
A. 2
B. 3
C. 4
D. 6
E. 8
- by Mjkourtis
Mon Nov 26, 2012 6:46 am- Forum: Problem Solving
- Topic: Rate Problem- GMATPrep 1
- Replies: 1
- Views: 964
Word Problem
A certain city with a population of 132,000 is to be divided into 11 voting districts and no district is to have a population of more than 10% greater than the population of any other district. What is the minimum population that the least populated district could have? A. 10,700 B. 10,800 C. 10,900...
- by Mjkourtis
Thu Oct 18, 2012 7:00 pm- Forum: Problem Solving
- Topic: Word Problem
- Replies: 2
- Views: 986
Geometry (sort of)
Which of the following lists the number of points at which a circle can intersect a triangle?
A. 2 and 6 only.
B. 2,4, and 6 only.
C. 1,2,3,6 only.
D. 1,2,3,4,6 only.
E. 1,2,3,4,5,6.
- by Mjkourtis
Thu Oct 18, 2012 6:58 pm- Forum: Problem Solving
- Topic: Geometry (sort of)
- Replies: 1
- Views: 1073
Factors
If a,b,k, and m are positive integers, is a to the kth power a factor of b to the mth power?
(1) a is a factor of b.
(2) k<=m.
- by Mjkourtis
Thu Oct 18, 2012 6:56 pm- Forum: Data Sufficiency
- Topic: Factors
- Replies: 1
- Views: 935
- by Mjkourtis
Tue Oct 16, 2012 3:46 pm- Forum: Data Sufficiency
- Topic: Divisibility
- Replies: 2
- Views: 1173
Geometry Problem
The perimeter of an isosceles right triangle is 16+ 16 sqrt(2). What is the hypotenuse?
A. 8
B. 16
C. 4 sqrt(2)
D. 8 sqrt(2)
E. 16 sqrt(2)
- by Mjkourtis
Tue Oct 16, 2012 3:43 pm- Forum: Problem Solving
- Topic: Geometry Problem
- Replies: 4
- Views: 1251
Average and Median Problem
Last month 15 homes were sold in Town X. The average sale price was $150,000 and median price was $130,000. Which of the following must be true? I. At least 1 home was sold for more than $150,000. II. At least 1 home was sold between $130,000 and $150,000. III. At least 1 home was sold for less than...
- by Mjkourtis
Sun Oct 14, 2012 6:32 pm- Forum: Problem Solving
- Topic: Average and Median Problem
- Replies: 2
- Views: 1117
Sets Problem
At least 100 students at a high school study Japanese. If 4% of the students who study French also study Japanese, do more students study French than Japanese?
(1) 16 students study both Japanese and French.
(2) 10% of students who study Japanese also study French.
- by Mjkourtis
Sun Oct 14, 2012 6:29 pm- Forum: Data Sufficiency
- Topic: Sets Problem
- Replies: 1
- Views: 924
Average Problem
Each employee on a task force is either a manager or a director. What percentage of the task force are directors?
(1) The average manager salary is $5,000 less than the average of all employees.
(2) The average director salary is $15,000 more than the average of all employees.
- by Mjkourtis
Sun Oct 14, 2012 6:27 pm- Forum: Data Sufficiency
- Topic: Average Problem
- Replies: 2
- Views: 1073
GMATPrep 1 Geometry Question
In the figure, equilateral triangle ABC is inscribed in a circle. If the length of arc ABC is 24, what is the diameter?
A. 5
B. 8
C. 11
D. 15
E. 19
- by Mjkourtis
Sat Oct 13, 2012 9:45 am- Forum: Problem Solving
- Topic: GMATPrep 1 Geometry Question
- Replies: 3
- Views: 1662
GMATPrep 1 Rate Problem
At a speed of 50 mph, a car used 1 gallon every 30 miles. If the car starts with a full tank of 12 gallons and travels for 5 hours at 50 mpg, the amount of gas used would be what fraction of full tank?
A. 3/25
B. 11/36
C. 7/12
D. 2/3
E. 25/36
- by Mjkourtis
Sat Oct 13, 2012 9:41 am- Forum: Problem Solving
- Topic: GMATPrep 1 Rate Problem
- Replies: 2
- Views: 994
GMATPrep 1- Digits
What is the hundredths digit of decimal z?
(1) the tenths digit of 10z is 2.
(1) the units digit of 1,000z is 2.
- by Mjkourtis
Sat Oct 13, 2012 9:39 am- Forum: Data Sufficiency
- Topic: GMATPrep 1- Digits
- Replies: 2
- Views: 1102
GMATPrep 1
If p and n are positive integers and p>n, what is the remainder when p(squared)- q(squared)is divided by 15?
(1) remainder when p+n divided by 5 is 1.
(2) remainder when p-n divided by 5 is 1.
- by Mjkourtis
Sat Oct 13, 2012 9:38 am- Forum: Data Sufficiency
- Topic: GMATPrep 1
- Replies: 3
- Views: 1239
GMATPrep 1 Geometry Question
A thin wire of 40 meters is cut into 2 pieces. One piece is used to form a circle with radius r and the other is used to form a square. No wire is left over. Which represents the total area?
a. πr^2
b. πr^2 +10
c. πr^2 + (1/4)*π^2*r^2
d. πr^2 + (40- 2πr)^2
e. πr^2 + (10-(1/2)*πr)^2
- by Mjkourtis
Sat Sep 29, 2012 12:28 pm- Forum: Problem Solving
- Topic: GMATPrep 1 Geometry Question
- Replies: 2
- Views: 1057