Search found 76 matches
Re: Total number of balls...
Q-1. Tom placed a few red and blue balls in a box. He marked all red balls with number 7 and all blues balls with number 3. During his experiment, Tom picked a few balls of both colors and got 441 after multiplying all values. How many balls did Tom picked? Q-2. How many balls were of Red color? Q-...
- by mpaudena
Thu Oct 22, 2009 8:36 pm- Forum: Problem Solving
- Topic: Total number of balls...
- Replies: 3
- Views: 960
Re: GMAT Prep - Scanners
It does sort of contradict and that is the reason it is a questionable assumption. Here is what the stimulus says: .... several banks plan to issue to their corporate customers checks that contain dots too small to be accurately duplicated by any electronic scanner currently available.... The scanne...
- by mpaudena
Thu Oct 22, 2009 10:00 am- Forum: Critical Reasoning
- Topic: GMAT Prep - Scanners
- Replies: 19
- Views: 10028
Re: GMAT Prep - Scanners
IMO the answer is E. E says that the argument relies on the assumption that the printers will not be able to print smaller dots accurately in the near future. E. the size of the smallest dots that ... scanners are able to reproduce accurately will not decrease significantly in the near future. if th...
- by mpaudena
Wed Oct 21, 2009 10:58 am- Forum: Critical Reasoning
- Topic: GMAT Prep - Scanners
- Replies: 19
- Views: 10028
- by mpaudena
Wed Oct 21, 2009 10:16 am- Forum: Data Sufficiency
- Topic: Percent Problem
- Replies: 7
- Views: 1873
Mang sal(avg)-----overall sal(avg)-----Dir avg(sal) 5000 15000 Hence M/D = 15000/5000 = 3/1 How are you getting the number of employees from the average? Average = Sum sal/Number of Employees. I don't see how Mang sal(avg) = overal sal(avg) - 5000 gives you the sum of the salaries or the number of ...
- by mpaudena
Wed Oct 21, 2009 8:19 am- Forum: Data Sufficiency
- Topic: Percent Problem
- Replies: 7
- Views: 1873
Re: Annual Rent
Guys, Does anyone have an efficient strategy for attaching these types of questions? I am consistently getting them wrong. Please help. The annual rent collected by a corporation from a certain building was x% more in 1998 than 1997 and y% less in 1999 than 1998. Was the annual rent collected by th...
- by mpaudena
Wed Oct 21, 2009 7:31 am- Forum: Data Sufficiency
- Topic: Annual Rent
- Replies: 7
- Views: 3223
I'm sorry. Statement 2 is incomplete: -x|x| > 0.
Also, Sanjana, I don't know if you've stopped watching this topic but please take a look at this (http://www.beatthegmat.com/percent-prob ... tml#198038) as I am still having problems with it. Thanks.
[/url]
- by mpaudena
Wed Oct 21, 2009 6:41 am- Forum: Data Sufficiency
- Topic: GMATPrep Help
- Replies: 3
- Views: 1174
IMO : C What we need to know here is the point at which a line intersects the x axis the y coordinate of that point will be 0. Hence we basically need to find a and b here coz when y=0 (x+a)(x+b)=0 so the 2 points will be (-a,0) and (-b,0) Statement 1: ------------ a+b=-1 We can get more than 1 com...
- by mpaudena
Wed Oct 21, 2009 6:30 am- Forum: Data Sufficiency
- Topic: Geometry Graph
- Replies: 2
- Views: 1060
Mang sal(avg)-----overall sal(avg)-----Dir avg(sal) 5000 15000 Hence M/D = 15000/5000 = 3/1 How are you getting the number of employees from the average? Average = Sum sal/Number of Employees. I don't see how Mang sal(avg) = overal sal(avg) - 5000 gives you the sum of the salaries or the number of ...
- by mpaudena
Wed Oct 21, 2009 6:23 am- Forum: Data Sufficiency
- Topic: Percent Problem
- Replies: 7
- Views: 1873
- by mpaudena
Wed Oct 21, 2009 5:18 am- Forum: Problem Solving
- Topic: Inequalities
- Replies: 4
- Views: 1181
[/quote] I've almost done the same method, but unnecessarily multiplied by 3! with each scenario. Thought we should re-arrange 3 people within the group. In combinatorics, when do we need to re-arrange like i did for this prob and when we must not? Pls help me understand[/quote] I think your confuse...
- by mpaudena
Wed Oct 21, 2009 4:45 am- Forum: Problem Solving
- Topic: Combinatorics
- Replies: 9
- Views: 1574
GMATPrep Help
Is Sqrt(x-3)^2 = 3 - x?
1) x does not equal 3
2) -x|x|
Please explain how to find statement 1 insufficient. Thanks in advance.
- by mpaudena
Tue Oct 20, 2009 8:21 pm- Forum: Data Sufficiency
- Topic: GMATPrep Help
- Replies: 3
- Views: 1174
Geometry Graph
In the xy plane, at what two points does the graph of y = (x + a)(x + b) intersect the x-axis?
(1) a + b = -1
(2) The graph intersects the y-axis at (0,-6).
Answer and explanation please. Thanks in advance.
- by mpaudena
Tue Oct 20, 2009 5:54 pm- Forum: Data Sufficiency
- Topic: Geometry Graph
- Replies: 2
- Views: 1060
Percent Problem
Each employee on a certain task force is either a manager or a director. What percent of the employees on the task force are directors? (1) The average (arithmetic mean) salary of the managers on the task force is $5,000 less than the average salary of all employees on the task force. (2) The averag...
- by mpaudena
Tue Oct 20, 2009 4:25 pm- Forum: Data Sufficiency
- Topic: Percent Problem
- Replies: 7
- Views: 1873
Wow! You must be scoring in the high 700 - 800 Sanjana. Thanks again. Where did you start off when you begin studying? Were you always good in math? Do you know what thought process would help me to see the way you do?
- by mpaudena
Tue Oct 20, 2009 1:48 pm- Forum: Problem Solving
- Topic: GMATPrep Sequence and Interest Problem
- Replies: 2
- Views: 1033