Search found 14 matches
- by d0nw0ng
Mon Oct 08, 2007 12:52 pm- Forum: Problem Solving
- Topic: ratio prob
- Replies: 3
- Views: 1619
- by d0nw0ng
Mon Oct 08, 2007 12:41 pm- Forum: Problem Solving
- Topic: probability prob?
- Replies: 4
- Views: 1718
ratio prob
an auto dealer report car sales in 1999 reported car sales revenue down 11% from 1998 while truck sales revenue in 1999 were up 7% from 1998. if total revenue from car and truck sales in 1999 went up 1% from 1998, whats the ratio of car revenue in 1998 to truck revenue in 1998? a) 1:2 b) 4:5 c) 1:1 ...
- by d0nw0ng
Mon Oct 08, 2007 12:29 pm- Forum: Problem Solving
- Topic: ratio prob
- Replies: 3
- Views: 1619
- by d0nw0ng
Mon Oct 08, 2007 12:25 pm- Forum: Problem Solving
- Topic: probability prob?
- Replies: 4
- Views: 1718
- by d0nw0ng
Mon Oct 08, 2007 11:52 am- Forum: Problem Solving
- Topic: alg
- Replies: 2
- Views: 1812
coord geo
in the xy plane, what is the slop of line L?
a) line L does not intersect with the line w/ equation y = 1-x
b) line L intersects the line with equation y=x-1
- by d0nw0ng
Mon Oct 08, 2007 11:34 am- Forum: Data Sufficiency
- Topic: coord geo
- Replies: 1
- Views: 1496
numbers op
if the units digital of the three digit positive integer k is not zero, what is the tens digit of k?
1) the tens digit of k+9 is 3
2) the tens digit of k+4 is 2
- by d0nw0ng
Mon Oct 08, 2007 11:25 am- Forum: Data Sufficiency
- Topic: numbers op
- Replies: 2
- Views: 1461
exponent prob
n is a positive integer, what is the remainder when 3^(8n+3) + 2 is divided by 5?
a 0
b 1
c 2
d 3
e 4
- by d0nw0ng
Mon Oct 08, 2007 10:30 am- Forum: Problem Solving
- Topic: exponent prob
- Replies: 1
- Views: 1505
probability prob?
a school will choose 1 of 7 applicants to fill a position in the chem dept and 2 of 10 to fill 2 positions in physics dept. if none of the applicants is eligible for a position in both depts, how many different sets of 3 applicants are there to fill the 3 positions
a 42
b 70
c 140
d 165
e 315
- by d0nw0ng
Mon Oct 08, 2007 10:20 am- Forum: Problem Solving
- Topic: probability prob?
- Replies: 4
- Views: 1718
applied prob
a car traveling at a certain constant speed takes 2 secs longer to travel 1km than it would to travel 1km at 75kph. at what speed in kph is the car travelling?
a 71.5
b 72
c 72.5
d 73
e 73.5
- by d0nw0ng
Sat Oct 06, 2007 11:55 am- Forum: Problem Solving
- Topic: applied prob
- Replies: 1
- Views: 1265
coord geo prob
in the xy-plan, the line equation ax + by + c = 0, where abc doesnt equal 0, has slope 2/3. what is b?
1) a=4
2) c= -6
- by d0nw0ng
Sat Oct 06, 2007 11:51 am- Forum: Data Sufficiency
- Topic: coord geo prob
- Replies: 1
- Views: 1307
ratio prob
$60,000 was invested for a year. part of it earned simple annual interest at x percent per yr, and the rest earned simple annual int. at y percent per yr. if the total interest earned by the 60,000 for that yr was 4080, what is x? 1) x = 3y/4 2) the ratio of the amt that earned interest at x% to amt...
- by d0nw0ng
Sat Oct 06, 2007 11:49 am- Forum: Data Sufficiency
- Topic: ratio prob
- Replies: 1
- Views: 1522
Exponential Problem
99,999^2 - 1^2 = ?
a) 10^10 - 2
b) (10^5 -2)^2
c) 10^4(10^5-2)
d) 10^5(10^4-2)
e) 10^5(10^5-2)
- by d0nw0ng
Sat Oct 06, 2007 11:44 am- Forum: Problem Solving
- Topic: Exponential Problem
- Replies: 1
- Views: 1433
Ratio Problem
Company S produces two kinds of stereos: basic and deluxe. Of the stereoes produced by Company S, 2/3 were basic and the rest were deluxe. If it takes 7/5 as many hours to produce a delux stereo as it does a basic, the the number of hours it took to produce the delux stereos last month was what frac...
- by d0nw0ng
Sat Oct 06, 2007 11:41 am- Forum: Problem Solving
- Topic: Ratio Problem
- Replies: 1
- Views: 1411