| View previous topic :: View next topic |
| Author |
Message |
CITI29
Rising GMAT Star
Joined: 18 Mar 2008
Posts: 95
Thanks given: 0
Thanked 0 times in 0 posts
|
 Posted: Sun Jul 13, 2008 4:07 pm Post subject: confusing |
 |
|
Are all of the numbers in a certain list of 15 numbers
equal?
(1) The sum of all the numbers in the list is 60
(2) The sum of any 3 numbers in the list is 12.
ans is 'b' ...pls explain |
|
| Back to top |
|
 |
|
|
Delph
Just gettin' started!
Joined: 19 Jun 2008
Posts: 5
Thanks given: 0
Thanked 0 times in 0 posts
|
| Posted: Tue Jul 15, 2008 9:50 am Post subject: Re: confusing |
|
|
| CITI29 wrote: | Are all of the numbers in a certain list of 15 numbers
equal?
(1) The sum of all the numbers in the list is 60
(2) The sum of any 3 numbers in the list is 12.
ans is 'b' ...pls explain |
1) can be:
4+4+4...+4 - True
5+3+4+...+4 - False
=>Not A or D
2) If the sum of ANY 3 numbers is 12 - it means that n could only be equal to 4. Thus it's always TRUE - all of the numbers are equal. |
|
| Back to top |
|
|
|
