Search found 24 matches
Re: factor question
30 = 2*3*5
So factors are 1,2,3,5,6,10,15,30.
Apart from 1,2,3,5, and 30, find the product of 2,3, and 5 in all combinations.
- by manju_ej
Tue Aug 05, 2008 8:21 am- Forum: Problem Solving
- Topic: factor question
- Replies: 7
- Views: 1798
- by manju_ej
Tue Aug 05, 2008 8:11 am- Forum: Problem Solving
- Topic: Gprep PS
- Replies: 7
- Views: 2433
Gprep PS
A boat travelled upstream a distance of 90 miles at an average speed of (v-3) miles per hour and then travelled downstream at an average speed of (V+3) miles per hour. If the trip upstream took half an hour longer than the trip downstream, how many hours did it take the boat to travel downstream?
- by manju_ej
Tue Aug 05, 2008 7:22 am- Forum: Problem Solving
- Topic: Gprep PS
- Replies: 7
- Views: 2433
GPrep PS
All of the stocks on the over the counter market are deisgnated by either a 4-letter or a 5-letter code that is created by using the 26 letteres of the alphabet. Which of the following gives the maximum number of the different stocks that can be designated with these codes? 1)2(26^5) 2) 26(26^4) 3) ...
- by manju_ej
Tue Aug 05, 2008 7:08 am- Forum: Problem Solving
- Topic: GPrep PS
- Replies: 1
- Views: 1164
GMAT Prep PS
For every positive even integer n, the function h(n) is defined to be the product of all the even integers from 2 to n,inclusive. If P is the smallest prime factor of h(100)+1, then P is
1)b/w 2 & 10
2)b/w 10 & 20
3)b/w 20 & 30
4)b/w 30 & 40
5) greater than 40
- by manju_ej
Tue Aug 05, 2008 7:05 am- Forum: Problem Solving
- Topic: GMAT Prep PS
- Replies: 1
- Views: 1211
Gmat Prep PS
Three grades of milk are 1 percent, 2 percent and 3 percent fat by volume. If X gallons of the 1 percent grade, Y gallons of the 2 percent grade and Z gallons of the 3 percent grade are mixed to give X+Y+Z gallons of a 1.5 percent grade, What is X in terms of Y and Z?
- by manju_ej
Tue Aug 05, 2008 7:02 am- Forum: Problem Solving
- Topic: Gmat Prep PS
- Replies: 1
- Views: 1247
Kindly explain - DS Number Properties
If x is a positive integer , is x^3 - 3x^2+2x divisible by 4?
1. x=4y+4, where y is an integer
2. x=2z+2, where z is an integer
Answer is D ,
but my Q , why the possibility that Z = 0 not taken?
In that case X=2, and product of x,(x-2),(x-1) is Zero and this is not divisible by 4!
- by manju_ej
Tue Aug 05, 2008 1:32 am- Forum: Data Sufficiency
- Topic: Kindly explain - DS Number Properties
- Replies: 2
- Views: 1366
Re: Modifier Problem
I could narrow my options to B/E.codesnooker wrote:I try to solve it. But second time also get incorrect choice.
But I prefer E as B is in the passive voice.
The answer is E, the modifier is correctly touching the noun scientists, which is not the case in other options.
- by manju_ej
Mon Aug 04, 2008 8:44 am- Forum: Sentence Correction
- Topic: Modifier Problem
- Replies: 11
- Views: 2221
- by manju_ej
Mon Aug 04, 2008 8:27 am- Forum: Sentence Correction
- Topic: SC_GMATPREP:WHY and HOW Please.
- Replies: 8
- Views: 1934
Kindly explain this SC
In addition to her work on the Miocene hominid fossil record, Mary Leakey contributed to archaeology with her discovery of the earliest direct evidence of hominid activity and painstakingly documenting East African cave paintings. a) Leakey contributed to archaeology with her discovery of the earlie...
- by manju_ej
Mon Aug 04, 2008 8:17 am- Forum: Sentence Correction
- Topic: Kindly explain this SC
- Replies: 7
- Views: 2590
Re: exponents
2+2+2^2+2^3+2^4+2^5+2^6+2^7+2^8+2^9+2^10= 1. 2^10 2. 2^11 3. 2^18 4. 2^54 5. 2^56 The answer is 2^11 Remove the first term (2) and take a look at the remaining portions. They are in the Geometric Progression. So the formula to find the sum of n terms of a geometric progression is S=b1*(1-r^n/1-r), ...
- by manju_ej
Mon Jul 21, 2008 8:23 am- Forum: Problem Solving
- Topic: exponents
- Replies: 6
- Views: 1879
Need RC passages which can be downloaded or online
Pls give me some resources for doing RC not the paper format.
- by manju_ej
Thu Jul 17, 2008 4:44 am- Forum: Reading Comprehension
- Topic: Need RC passages which can be downloaded or online
- Replies: 1
- Views: 4149
Re: GMAT Prep - Geometry
Angle BDC (2x)= angle DAB(X)+ angle DBA(X) ie 2X= sum of the non-adjacent angles(X+X) So it can be concluded, AD =BD = BC.(Isoceles triangles) Statement (1) AD=6, sufficient , so BC = 6 Statemet (2) X=36, this info just reiterates the fact AD= BD=BC, but without the length of any one of these sides,...
- by manju_ej
Thu Jul 17, 2008 1:45 am- Forum: Problem Solving
- Topic: GMAT Prep - Geometry
- Replies: 6
- Views: 1705
- by manju_ej
Wed Jul 16, 2008 8:30 am- Forum: I just Beat The GMAT!
- Topic: 660 - Q 44 V 36 - I share advice and a question.
- Replies: 6
- Views: 3749
Re: How i got a 760 !
Hi Raj, I couldnt download the attachments. The following error is displayed, The selected Attachment does not exist anymore 404 File Not Found: The File files/probability_review_103.doc does not exist. Note: I downloaded them from the GMAT resources. Q1: How long did it take u to prepare for GMAT? ...
- by manju_ej
Thu Jul 10, 2008 11:19 pm- Forum: I just Beat The GMAT!
- Topic: How i got a 760 !
- Replies: 13
- Views: 4708