Search found 119 matches
Galileo---Kaplan 800
Galileo's theory that ours was indeed a solar system, in which Earth and other planets revolve around the sun, reinforced those of Copernicus. (A) ours was indeed a solar system, in which Earth and other planets revolve around the sun, reinforced those of Copernicus (B) ours was indeed a solar syste...
- by raju232007
Wed May 05, 2010 10:23 am- Forum: Sentence Correction
- Topic: Galileo---Kaplan 800
- Replies: 20
- Views: 6416
Tricky question
Is x>3? 1. x^2>9 2. sqrt(x)>1.5 1. From statement 1 we have x<-3 and x>3 Insufficient 2. From the second statement we get x>2.25 ( By squaring on both sides) Insufficient By combining two statements we can conclude that x is positive and x>2.25 and x>3 But still we can't say whether x>3 or not.... S...
- by raju232007
Mon May 03, 2010 9:06 am- Forum: Data Sufficiency
- Topic: Tricky question
- Replies: 2
- Views: 1114
Gr8 explanation..Coordinate geometry becomes much easier when you solve a problem using diagrammatic approach..I used the algebraic approach, which consumed a little more time...Anyway..thanks a lot...From here on I will try to solve coordinate geometry problem using diagrams.... Btw..If anyone requ...
- by raju232007
Mon May 03, 2010 4:56 am- Forum: Data Sufficiency
- Topic: Coordinate Geometry
- Replies: 4
- Views: 1364
Thank you for your prompt response...but I am still not clear with your explanation given above....It would be really helpful if you can elaborate a little more....
- by raju232007
Mon May 03, 2010 3:34 am- Forum: Data Sufficiency
- Topic: Coordinate Geometry
- Replies: 4
- Views: 1364
Coordinate Geometry
What is the slope of line p?
1. x intercept is twice the y intercept
2. The line passes through the I and III quadrant
I solved this one and got the ans as C..but I am not sure about it...Can someone help me on this one?
- by raju232007
Mon May 03, 2010 12:16 am- Forum: Data Sufficiency
- Topic: Coordinate Geometry
- Replies: 1
- Views: 1128
Coordinate Geometry
Is the slope of line p greater than the slope of line q?
1. The x intercept of line p is greater than that of q
2. The y intercept of line p is less than that of q
I would appreciate a detailed explanation on how to solve this one.......
- by raju232007
Mon May 03, 2010 12:14 am- Forum: Data Sufficiency
- Topic: Coordinate Geometry
- Replies: 4
- Views: 1364
Tricky ones
1.Two typists Mia and Gerard work alternatively on a typewriter, one hour at a time. How many hours do they take to type a report? 1. Mia alone takes 10 hours to type the entire report. 2.Gerard alone takes 14 hours to type the entire report. OA is E 2. If a,b and c take distinct integer values from...
- by raju232007
Mon Feb 08, 2010 7:46 am- Forum: Data Sufficiency
- Topic: Tricky ones
- Replies: 7
- Views: 1168
I am sorry to if bother you again.....but then if 7x+7y>0 is fine then I can combine this equation with equation 1 (i.e 7x-2y>0) to conclude that -9y>0, so y should be negative... That is 7x-2y>0..............(1) 7x+7y>0.............(2) (1)-(2) => -9y>0 Can you tell me what's wrong in what I have do...
- by raju232007
Mon Jan 25, 2010 3:25 am- Forum: Data Sufficiency
- Topic: Number Properties
- Replies: 5
- Views: 1315
Thanks for your prompt response....But why can't -7x-7y<0 be multiplied by -1 on both sides to give 7x+7y>0?
- by raju232007
Mon Jan 25, 2010 2:56 am- Forum: Data Sufficiency
- Topic: Number Properties
- Replies: 5
- Views: 1315
Number Properties
The answer to this question has already been posted in this forum..But I am still not able to understand the explanation If x and y are integers and x>0, is y>0? 1. 7x-2y>0 2. -y<x The first statement says that 7x-2y>0........................(1) The second statement can be rewritten as x+y>0.. Multi...
- by raju232007
Mon Jan 25, 2010 2:10 am- Forum: Data Sufficiency
- Topic: Number Properties
- Replies: 5
- Views: 1315
Weighted Average
For a certain company X, the average daily payroll for each 30-day payroll cycle is the average (arithmetic mean) of the daily payroll totals for each of the 30 days. During the first part of a recent 30-day payroll cycle, the daily payroll was a constant $5,750. When a new employee was hired during...
- by raju232007
Thu Jan 21, 2010 2:36 pm- Forum: Data Sufficiency
- Topic: Weighted Average
- Replies: 1
- Views: 1289
Can you solve this one
I happen to come across this question in one of the forums..I would certainly appreciate if anyone could provide the solution along with a detailed explanation
5^x-5^y=2^(y-1)*5^(x-1).What is the value of xy?
I don't have the answer choices with me...M sorry about that.
- by raju232007
Fri Jan 15, 2010 1:10 am- Forum: Problem Solving
- Topic: Can you solve this one
- Replies: 6
- Views: 1613
Exponents
If x is not equal to y and if sqrt(x)=y,what is the value of y^3?
1.x=y^x
2.x^3=8
I think the ans is D..But the OA is C..
- by raju232007
Fri Jan 15, 2010 1:09 am- Forum: Data Sufficiency
- Topic: Exponents
- Replies: 1
- Views: 1162
Standard Deviation
A set of data consists of the following 5 numbers: 0,2,4,6 and 8.Which two numbers,if added to create a set of 7 numbers will result in a new standard deviation that is close to the standard deviation for the original 5 numbers? A.-1 and 9 B. 4 and 4 C. 3 and 5 D. 2 and 6 E. 0 and 8 OA is D I have a...
- by raju232007
Sat Oct 25, 2008 6:30 am- Forum: Problem Solving
- Topic: Standard Deviation
- Replies: 3
- Views: 1557
OG is definitely the bible for GMAT preparation..There is no doubt about it..I may not be the right person to answer your question as I am yet to take the exam.But I have heard from many of the GMAT aspirants that for getting >650 working out all the problems in OG shall suffice.But then If you want...
- by raju232007
Thu Oct 16, 2008 6:54 pm- Forum: GMAT Strategy
- Topic: OG vs Others - Is OG really the bible of GMAT?
- Replies: 6
- Views: 2394