Search found 16 matches
- by chacha0212
Fri Dec 05, 2014 6:24 pm- Forum: Data Sufficiency
- Topic: integers property
- Replies: 2
- Views: 1647
- by chacha0212
Fri Dec 05, 2014 5:44 pm- Forum: Data Sufficiency
- Topic: integers property
- Replies: 4
- Views: 2580
- by chacha0212
Fri Dec 05, 2014 5:42 pm- Forum: Problem Solving
- Topic: probability
- Replies: 2
- Views: 1446
- by chacha0212
Fri Dec 05, 2014 5:41 pm- Forum: Problem Solving
- Topic: mean
- Replies: 1
- Views: 1337
- by chacha0212
Fri Dec 05, 2014 5:37 pm- Forum: Problem Solving
- Topic: value speed
- Replies: 5
- Views: 2469
- by chacha0212
Fri Dec 05, 2014 5:36 pm- Forum: Problem Solving
- Topic: diameter of triangle! please help
- Replies: 3
- Views: 2187
- by chacha0212
Fri Dec 05, 2014 5:34 pm- Forum: Problem Solving
- Topic: coordinate geometry
- Replies: 5
- Views: 2696
- by chacha0212
Fri Dec 05, 2014 5:27 pm- Forum: Data Sufficiency
- Topic: fx
- Replies: 4
- Views: 1922
set
A list of measurements in increasing order is 4, 5, 6, 8, 10 and x. If the median of these measurements is 6/7 times their arithmetic mean, what is the value of x?
a. 16
b. 15
c. 14
d. 13
d. 12
- by chacha0212
Thu Dec 04, 2014 5:19 pm- Forum: GMAT Math
- Topic: set
- Replies: 5
- Views: 4417
stack of oranges
Grocer stacked oranges in a pile. Bottom layer was rectangular with 3 rows of 5 oranges each. In 2nd layer, from bottom, each orange rested on 4 oranges from bottom layer and in the 3rd layer each orange rested on 4 oranges from 2nd layer. Which of the following is max number of oranges that could h...
- by chacha0212
Thu Dec 04, 2014 5:01 pm- Forum: GMAT Math
- Topic: stack of oranges
- Replies: 1
- Views: 1919
Circle
Circle C and line k lie in the xy plane. If Circle C is centered at the origin and has radius 1, does link k intersect circle C?
1) X-intercept of line k is greater than 1
2) The slope of line k is -1/10
- by chacha0212
Thu Dec 04, 2014 4:58 pm- Forum: GMAT Math
- Topic: Circle
- Replies: 1
- Views: 1985
average
Last year, a public transportation system sold an average (arithmetic mean) of 41,000 tickets per day on weekdays (Monday through Friday) and a average of 18, 000 tickets per day on Saturday and Sunday. Which of the following is closest to the total number of tickets sold last year? A) 1 mil B) 1.25...
- by chacha0212
Thu Dec 04, 2014 12:04 pm- Forum: GMAT Math
- Topic: average
- Replies: 2
- Views: 5060
Probability
A housing subdivision contains only two types of homes: ranch-style homes and townhomes. There are twice as many townhomes as ranch-style hoes. There are 3 times as many townhomes with pools than without pools. What is the probability that a home selected at random from the subdivision will be a tow...
- by chacha0212
Fri Nov 28, 2014 12:26 pm- Forum: Problem Solving
- Topic: Probability
- Replies: 4
- Views: 1913
Value of R
If V = 12R / (r + R) , then R =
A. Vr / (12 - V)
B. Vr + V /12
C. Vr - 12
D. V / r - 12
E. V (r + 1) /12
I got V (r+R)= 12R
Vr + VR=12R
Vr =12R - VR
Vr = R(12-V)
R(12 -V)/ Vr
- by chacha0212
Fri Oct 10, 2014 9:22 pm- Forum: Problem Solving
- Topic: Value of R
- Replies: 5
- Views: 3989
Number of People on a Bus
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 Could you please help on this question? The answer says B and I did not unders...
- by chacha0212
Wed Oct 08, 2014 5:03 pm- Forum: Problem Solving
- Topic: Number of People on a Bus
- Replies: 3
- Views: 3904