Search found 78 matches
Re: ok
simplyjat, I need to side with harvard dreamin because I lost you there. I dont follow you on the reasoning to the bold faced. can you help? I think another way of looking at the problem is this: if a # is divided by 72, then that number can be 72*1=72 72*2=144 72*3=216 72*4=288 72*5=360 * * * and ...
- by preciousrain7
Mon Mar 24, 2008 2:30 pm- Forum: Problem Solving
- Topic: og 169
- Replies: 12
- Views: 3306
Re: manhattan gmat divisibility
If x and y are positive integers, which of the following CANNOT be the greatest common divisior of 35x and 20y? a. 5 b.5(x-y) c.20x d. 20y e.35x Solution that is given to me is not making sense. Is there a way to pick a number for this situation and test the given answer choices. MY instincts say t...
- by preciousrain7
Mon Mar 24, 2008 2:02 pm- Forum: Problem Solving
- Topic: manhattan gmat divisibility
- Replies: 3
- Views: 7174
Can you give more explanation for the last step please? Thanks!xilef wrote:using work formula to find the time it takes for both machines to do the same work:
(18*36)/54=12 hrs for both machines to complete the job
2 hrs is 6 times faster so the company needs 6 of each to do it in 12hr.
Answer C.
- by preciousrain7
Mon Mar 24, 2008 1:47 pm- Forum: Problem Solving
- Topic: GMAT PREP????
- Replies: 7
- Views: 3383
Propeller and Circumference Quest
The end of a blade on an airplane propeller is 10 feet from the center. If the propeller spins at the rate of 1,320 revolutions per second, how many miles will the tip of the blade travel in one minute? (1 mile = 5,280 feet) 1. 200π 2. 240π 3. 300π 4. 480π 5. 1,20...
- by preciousrain7
Tue Feb 19, 2008 5:04 pm- Forum: Problem Solving
- Topic: Propeller and Circumference Quest
- Replies: 3
- Views: 2032
Please do not post live test questions in this community! Doing so is a strict violation of the contract you signed with GMAC when you took the GMAT, and if GMAC discovers you are sharing these materials they can ban you from taking the test. Be careful! OMG I'm so sorry! I guess I didn't read the ...
- by preciousrain7
Sun Jan 27, 2008 11:29 am- Forum: Data Sufficiency
- Topic: [DELETED] Real GMAT Ques from yesterday's Test
- Replies: 3
- Views: 1640
[DELETED] Quest from yesterday's GMAT test: Probability
This is the only probability question I got, no combination or perm questions.
DELETED
Sorry I don't remember any of the choices.
- by preciousrain7
Sat Jan 26, 2008 11:59 am- Forum: Problem Solving
- Topic: [DELETED] Quest from yesterday's GMAT test: Probability
- Replies: 1
- Views: 1549
[DELETED] Real GMAT Ques from yesterday's Test
Hi Guys I just took my GMAT yesterday. Got a 590. Im neutral about the score, will take the test again but I wanted to share some of the questions I came across on the test (the ones I remember) for your practice:
Attachment deleted
- by preciousrain7
Sat Jan 26, 2008 11:54 am- Forum: Data Sufficiency
- Topic: [DELETED] Real GMAT Ques from yesterday's Test
- Replies: 3
- Views: 1640
Dont let this bring you down - there may be some areas of weakness that if u probably work on, you will be able to improve your score. I really believe that god gives you hard times to make you stronger - I bet the next time you will come out with the best score possible. Looking forward to know th...
- by preciousrain7
Thu Jan 24, 2008 5:20 pm- Forum: I just Beat The GMAT!
- Topic: I JUST GOT ****ED BY THE GMAT....
- Replies: 2
- Views: 2856
Stuart, is it safe to say, a sq can be a rhombus but a rhombus can't be a square and a sq./rhombus can be a rectangle but a rect. can't be a sq./rhombus? Sonia Not quite. Here's what we can say: A square IS a rhombus. A rhombus MAY BE a square. A square IS a rectangle. A rectangle MAY BE a square. ...
- by preciousrain7
Wed Jan 23, 2008 2:25 pm- Forum: Data Sufficiency
- Topic: Why the answer is D
- Replies: 5
- Views: 3129
- by preciousrain7
Wed Jan 23, 2008 12:03 pm- Forum: Data Sufficiency
- Topic: integer..
- Replies: 4
- Views: 1593
A rhombus is a parallelogram with 4 equal sides. A square is just a special kind of rhombus (just like a square/rhombus is a special kind of rectangle). So, if we have a 4 sided shape with equal sides, it falls within the definition of a rhombus. Stuart, is it safe to say, a sq can be a rhombus but...
- by preciousrain7
Wed Jan 23, 2008 11:47 am- Forum: Data Sufficiency
- Topic: Why the answer is D
- Replies: 5
- Views: 3129
St 1 x - y is Integer x = 1.5; y = 0.5 x+y = 2 (Int) x-y = 1 (Int) But y not Integer. So St1 INSUFF St 2 x + 2y = (x + y) + y (Integer + Non Integer) CANNOT add up to an Integer. Since (x + y) is Integer, s y must be an Integer. SUFF, Hence B How do you know that X+Y is an integer? Using your equat...
- by preciousrain7
Wed Jan 23, 2008 11:32 am- Forum: Data Sufficiency
- Topic: integer..
- Replies: 4
- Views: 1593
I have a question: why isnt the answer 5*4*3*2, since you have 5 people to choose from for the first individual, then 4 people to choose from for the second individual, 3 people to choose from for the 3rd individual and 2 people to choose from for the 4th individual. Though I realize the answer is ...
- by preciousrain7
Sat Jan 19, 2008 12:41 pm- Forum: Problem Solving
- Topic: Permutation - combination problem
- Replies: 8
- Views: 12756
If we can only have one person from each couple, and we have to choose a person from 3 of the 4 couples, then we start with 4C3 = 4/1 = 4 However, from each couple we're choosing 1 of the 2 people. So, we have: 4C3 * 2C1 * 2C1 * 2C1 = 4 * 2 * 2 * 2 = 32 possible teams of 3. Why is it only 3 2C1 and...
- by preciousrain7
Sat Jan 19, 2008 10:02 am- Forum: Problem Solving
- Topic: another permutation combination problem
- Replies: 4
- Views: 2670
The easiest way to solve this question is to pretend that neither of them exist. So, we have 5 people and we want to make a group of 4. 5C4 = 5!/4!1! = 5*4!/4! = 5 Choose (a) I agree with Desi, we love your explanations Stuart! Stuart, I have a question: why isnt the answer 5*4*3*2, since you have ...
- by preciousrain7
Sat Jan 19, 2008 9:56 am- Forum: Problem Solving
- Topic: Permutation - combination problem
- Replies: 8
- Views: 12756