Search found 168 matches
20 + 17 + 19 is proportional to 168
58 = K 168
19 = K x
x= 19 * 168 /58 = 55.04
Calls cannot be a fractional so choose 56
OA plz
- by Tryingmybest
Wed Mar 25, 2009 9:55 am- Forum: Problem Solving
- Topic: can anyone solve this problem?
- Replies: 5
- Views: 1103
IMO A
Given
W: c = 5 : 2 = 25: 10
From A
c: m = 5 : 11 = 10 : 22
So w: c:m = 25: 10: 22 which cannot be minimized further
So no . of men = 22
A
- by Tryingmybest
Wed Mar 25, 2009 9:43 am- Forum: Problem Solving
- Topic: Ratios fun
- Replies: 8
- Views: 1537
Mustang
You are close indeed 
there are five different ways to order the one person who didn't vote, so our final result must be 0.06561 × 5 = 0.32805, which is around 32.8%.
- by Tryingmybest
Wed Mar 25, 2009 9:21 am- Forum: Problem Solving
- Topic: Probability - Voter
- Replies: 2
- Views: 1290
GCD
What is the greatest common factor of positive integers x and y?
(1) The greatest common factor of x/2 and y/2 is 5.
(2) x and y are even.
OA after some discussions
- by Tryingmybest
Wed Mar 25, 2009 7:34 am- Forum: Data Sufficiency
- Topic: GCD
- Replies: 4
- Views: 1237
Probability - Voter
There is a 90% chance that a registered voter in Burghtown voted in the last election. If five registered voters are chosen at random, what is the approximate likelihood that exactly four of them voted in the last election?
26.2%
32.8%
43.7%
59.0%
65.6%
OA B
- by Tryingmybest
Wed Mar 25, 2009 5:53 am- Forum: Problem Solving
- Topic: Probability - Voter
- Replies: 2
- Views: 1290
Probability - Office floor
Out of eight marketers and two developers, four people will be chosen at random to occupy the worst office on the floor. What is the probability that at least one of the developers will be chosen?
1/4 1/3 2/5 2/3 3/4
OA D
- by Tryingmybest
Wed Mar 25, 2009 5:52 am- Forum: Problem Solving
- Topic: Probability - Office floor
- Replies: 3
- Views: 2416
Probability models
Out of seven models, all of different heights, five models will be chosen to pose for a photograph. If the five models are to stand in a line from shortest to tallest, and the fourth-tallest and sixth-tallest models cannot be adjacent, how many different arrangements of five models are possible? 6 1...
- by Tryingmybest
Wed Mar 25, 2009 5:50 am- Forum: Problem Solving
- Topic: Probability models
- Replies: 1
- Views: 895
Probability - Couples
Two couples and one single person are seated at random in a row of five chairs. What is the probability that neither of the couples sits together in adjacent chairs?
a.1/5 b 1/4 c 3/8 d 2/5 e 1/2
OA -[spoiler]D bit I get 2/15[/spoiler]
- by Tryingmybest
Wed Mar 25, 2009 5:48 am- Forum: Problem Solving
- Topic: Probability - Couples
- Replies: 34
- Views: 13330
- by Tryingmybest
Tue Mar 24, 2009 4:11 pm- Forum: Problem Solving
- Topic: Need approach for this problem
- Replies: 3
- Views: 1222
Need approach for this problem
I came across this question in Princeton . Unfortunately I reset the test. Please help me with the approach to this problem. What is the probability of choosing four numbers 1, 2, 3, and 4 by four different persons A,B , C and D such that every Person chooses a distinct number? I dont have a OA for ...
- by Tryingmybest
Tue Mar 24, 2009 11:05 am- Forum: Problem Solving
- Topic: Need approach for this problem
- Replies: 3
- Views: 1222
- by Tryingmybest
Mon Mar 23, 2009 12:42 pm- Forum: Data Sufficiency
- Topic: DS some querries
- Replies: 6
- Views: 1735
Similar official GMAT Problem was discussed in this link months back. Please check
http://www.beatthegmat.com/remainder-t23606.html
- by Tryingmybest
Mon Mar 23, 2009 9:26 am- Forum: Data Sufficiency
- Topic: remainder - very interesting question
- Replies: 11
- Views: 3469
IMO q1) Ans must be E.
As we dont know how the rest of the 40% employees are allocated.
Please correct me if I am wrong.
- by Tryingmybest
Mon Mar 23, 2009 7:24 am- Forum: Data Sufficiency
- Topic: DS some querries
- Replies: 6
- Views: 1735
- by Tryingmybest
Fri Mar 20, 2009 12:18 pm- Forum: Data Sufficiency
- Topic: DS pls explain
- Replies: 8
- Views: 3762
- by Tryingmybest
Fri Mar 20, 2009 11:38 am- Forum: Data Sufficiency
- Topic: equal to x y?
- Replies: 6
- Views: 1551