## Search found 79 matches

##### Beat The GMAT Admin - Pls Contact Me!

Hi, My name is Joshua Weiss, I am the CEO of TeliApp, a mobile application development firm. I am also a Beat The GMAT member. When I was studying for the gmats I used this forum as my gateway to everything and anything GMAT related. I am tremendously greatful to all the awesome people who helped me...

- by jzw

Tue Mar 19, 2013 9:25 am- Forum: Suggestions and Feedback
- Topic: Beat The GMAT Admin - Pls Contact Me!
- Replies:
**0** - Views:
**2152**

##### probability

A box contains 100 balls, numbered from 1 to 100. If three balls are selected @ random and without replacement from the boc, what is the probability that the sum of the three numbers on the balls selected from the box will be odd? (a) 1/4 (b) 3/8 (c) 1/2 (d) 5/8 (e) 3/4 Ok. So 50 odd and 50 even. so...

- by jzw

Wed Mar 21, 2012 11:33 am- Forum: Problem Solving
- Topic: probability
- Replies:
**4** - Views:
**1242**

##### the famous retailer profits paradox revisited

Everybody knows the following one: A discount retailer of basic household necessities employs thousands of people and pays most of them at the minimum wage rate. Yet following a federally mandated increase of the minimum wage rate that increased the retailerâ€™s operating costs considerably, the ret...

- by jzw

Wed Mar 21, 2012 8:30 am- Forum: Critical Reasoning
- Topic: the famous retailer profits paradox revisited
- Replies:
**1** - Views:
**1474**

The rule of finding the potential third side of any triangle when given the other two lengths is: The third side must be smaller than the sum and greater than the difference. So for this example, 8-3=5 8+3=11 Since the third side must be smaller than the sum, it has to be less than 11. So anything 1...

- by jzw

Wed Mar 21, 2012 6:14 am- Forum: Problem Solving
- Topic: basic question
- Replies:
**9** - Views:
**1787**

##### GMAT program practice question with units digits

Here is a problem on the GMAT practice questions. I solved it a different way, and need to know if I stumbled upon the answer by accident or if what I did would hold true if a different version of the question was on the real test. "If X is a positive integer, and if the units digit of X^2 is 9...

- by jzw

Wed Mar 21, 2012 6:09 am- Forum: Problem Solving
- Topic: GMAT program practice question with units digits
- Replies:
**3** - Views:
**2784**

##### area of equilateral triangle "shortcut" tidbit

Only use it if you get why it is this way so that you don't accidentally apply it to the wrong kind of triangle. Area of Equilateral Triangle = âˆš3/4 * X^2. Why? 1. An equilateral triangle is one where all sides are equal to each other (let's call each side "X" since it can be any number)...

- by jzw

Mon Mar 19, 2012 7:00 am- Forum: Problem Solving
- Topic: area of equilateral triangle "shortcut" tidbit
- Replies:
**0** - Views:
**3858**

I wish I could think like you do Mitch! You see these questions and you make a "tough" rate problem look like it's really a simple logic question. Like - of course Zelda's traveled 16 miles by 1pm, and since they're traveling towards each other we all know to combine the rates for the rema...

- by jzw

Mon Mar 19, 2012 5:12 am- Forum: Problem Solving
- Topic: rate problem using the chart/box method?
- Replies:
**6** - Views:
**1829**

- by jzw

Sun Mar 18, 2012 5:40 pm- Forum: Problem Solving
- Topic: rate issue with box method and combines rates
- Replies:
**6** - Views:
**2007**

I was asked how I did it by someone privately so I'm posting it here. Attached you'll see how originally I tried to use my trusty box method, but for this type of rate problem I couldn't figure out how to take the box method to the next step. So, I took the information I used by using the box method...

- by jzw

Sun Mar 18, 2012 4:08 pm- Forum: Problem Solving
- Topic: rate issue with box method and combines rates
- Replies:
**6** - Views:
**2007**

that's correct - what was tripping me up was I was putting zelda's time as X and frank's time as t-2. can you tell me what signaled to you to make zelda's +2 instead of frank's -2?

- by jzw

Sun Mar 18, 2012 1:49 pm- Forum: Problem Solving
- Topic: rate problem using the chart/box method?
- Replies:
**6** - Views:
**1829**

##### rate issue with box method and combines rates

It takes 6 beavers 10 hours to build a certain dam, working at a uniform rate. If six beavers start to build the same dam at noon, and one beaver per hour is added beginning at 6:00 PM, at what time will the dam be complete? (a) 7:40 PM (b) 8:00 PM (c) 8:20 PM (d) 8:40 PM (e) 9:00 PM i got e, but i ...

- by jzw

Sun Mar 18, 2012 1:11 pm- Forum: Problem Solving
- Topic: rate issue with box method and combines rates
- Replies:
**6** - Views:
**2007**

##### rate problem using the chart/box method?

The distance from the south entrance to the north entrance of a certain straight bicycling trail is 88 miles. At 11:00 AM, Zelda starts biking from the north entrance towards the south entrance of the trail. At 1:00 PM, Frank starts biking from the south entrance towards the north entrance of the tr...

- by jzw

Sun Mar 18, 2012 12:34 pm- Forum: Problem Solving
- Topic: rate problem using the chart/box method?
- Replies:
**6** - Views:
**1829**

err - whoops. or - oh yeah, I did that on purpose to see if you were paying attention :) that's exactly the kind of simple, bumbling, idiotic, stupid, error I'll make on test day that could totally trip me up. it sucks when you know how to do it and then get the wrong answer because of some ridiculo...

- by jzw

Sun Mar 18, 2012 11:46 am- Forum: Problem Solving
- Topic: What is wrong with my approach ?
- Replies:
**10** - Views:
**1452**

Ok - here is what I did and why I did it. Please confirm whether the answer is correct. This question is different than other probability questions in that it is also a combination problem. The first thing we need to do in any probability question is to find out what are the desired outcomes and put...

- by jzw

Sun Mar 18, 2012 11:34 am- Forum: Problem Solving
- Topic: What is wrong with my approach ?
- Replies:
**10** - Views:
**1452**

You would hypothetically need to consider negatives in a consecutive integer question if you saw one in the answer choices.garryrother wrote:Hi Folks,

Confused a bit !

What about -13, -15 and -17?

Am i missing anything overhere?

Thanks!

- by jzw

Sun Mar 18, 2012 10:35 am- Forum: Problem Solving
- Topic: consecutive numbers
- Replies:
**9** - Views:
**1803**