Hi Srisanj,
There are subforums for specific sections of GMAT like
Math DS, PS, Verbal SC, CR, RC.
I understand u are new to BTG.
Welcome and have fun. U will be glad u saw this forum.
-V
Please help with this question
This topic has expert replies
Source: Beat The GMAT — Problem Solving |
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vittalgmat
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cramya
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Sri,
Welcome to the forum. Its an awesome one too for the GMAT.
Like Vittal said please post the questions in the correct forum so that you get more responses. I am sure one of the moderators will move this post to the right forum if u request.
Anyways coming to the problem:
U can see n+1,n+2, n+3 are three consectuive integers and they should always be divisible by 6
If u dint know this fact its no big deal the problem could still be solved by process of elimination(with gmat any method(conventional/unconventional) works as long as u can get to the answer without spending too much time on it)
One way of doing it:
Pick n=1
(n+1) (n+2) (n+3)
2 * 3 * 4
Eliminate all choices except 2 and 4
Pick n=2
3*4*5
Eliminate 4 and your answer is 2)
Welcome to the forum. Its an awesome one too for the GMAT.
Like Vittal said please post the questions in the correct forum so that you get more responses. I am sure one of the moderators will move this post to the right forum if u request.
Anyways coming to the problem:
U can see n+1,n+2, n+3 are three consectuive integers and they should always be divisible by 6
If u dint know this fact its no big deal the problem could still be solved by process of elimination(with gmat any method(conventional/unconventional) works as long as u can get to the answer without spending too much time on it)
One way of doing it:
Pick n=1
(n+1) (n+2) (n+3)
2 * 3 * 4
Eliminate all choices except 2 and 4
Pick n=2
3*4*5
Eliminate 4 and your answer is 2)
Last edited by cramya on Wed Dec 31, 2008 10:34 am, edited 1 time in total.
- deagez
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Call me stupid but,,,,,
if N=1
x=(1+1)(1+2)(1+3)
x=(2)(3)(4)
x=24
24 is divisible by 8 and 6 right?
Also Cramya I have no idea how you got 5 if N=1 for the third bracket, last time I checked 1+3 = 4 isnt it?
if N=1
x=(1+1)(1+2)(1+3)
x=(2)(3)(4)
x=24
24 is divisible by 8 and 6 right?
Also Cramya I have no idea how you got 5 if N=1 for the third bracket, last time I checked 1+3 = 4 isnt it?
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maihuna
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Yes plz post in proper subsection...in fact thre should be some way to enforce that..is somebody hearing me..????
as for as ur Q goes....see it: Any three continuos no will be a multiple of 3..and at least one of them even..why? because odd is always fllowed by even and vice versa...as night followed by day(not day followed by night btw, no wants darkness!!!!!!!!!!)
so a minimum of 3 and 2 is avialable for you to buy and multiply..there by 3x2 i.e. 6...
try some n =1 2 3 etc
n = 1: 2x3x4
3x4x5
5x6x7
out of given ;ist 6 is always there..huh
as for as ur Q goes....see it: Any three continuos no will be a multiple of 3..and at least one of them even..why? because odd is always fllowed by even and vice versa...as night followed by day(not day followed by night btw, no wants darkness!!!!!!!!!!)
so a minimum of 3 and 2 is avialable for you to buy and multiply..there by 3x2 i.e. 6...
try some n =1 2 3 etc
n = 1: 2x3x4
3x4x5
5x6x7
out of given ;ist 6 is always there..huh
- aim-wsc
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Nevermind,srisanj4 wrote:Hello Moderator and members,
please accept my sincere apologies - i will use appropriate forums going forward.
Thank you all for posting replies. Thanks for the help
but would you suggest where this thread actually belong to? sorry I lost touch & am not preparing for GMAT.
Thanks for self-moderation, and helping newbies in the forum, people
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