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If Carmen had 12 more tapes, she would have twice as many

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Senior Manager
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If Carmen had 12 more tapes, she would have twice as many [#permalink] New post 13 Sep 2003, 19:53
00:00
A
B
C
D
E

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(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 3 sessions
If Carmen had 12 more tapes, she would have twice
as many tapes as Rafael. Does Carmen have fewer tapes than Rafael ?

(1) Rafael has more than 5 tapes.
(2) Carmen has fewer than 12 tapes.
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Re: DS - Carmen & Rafa [#permalink] New post 13 Sep 2003, 20:22
MartinMag wrote:
If Carmen had 12 more tapes, she would have twice
as many tapes as Rafael. Does Carmen have fewer tapes than Rafael ?

(1) Rafael has more than 5 tapes.
(2) Carmen has fewer than 12 tapes.


I would say B.

C = 2R -12

C can be only be positive..so R has to be more than 5...

And for every value between 5 and 12 , not inclusive.. C < R

thanks
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 [#permalink] New post 14 Sep 2003, 07:33
MartinMag wrote:
What if C has 11 tapes ?



well, thats where the sanity check comes in :)

23/2 = 11.5 tapes in not possible..is it
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 [#permalink] New post 14 Sep 2003, 20:41
B is the answer .. so I guess you're right
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Re: DS - Carmen & Rafa [#permalink] New post 18 Sep 2003, 07:30
praetorian123 wrote:
MartinMag wrote:
If Carmen had 12 more tapes, she would have twice
as many tapes as Rafael. Does Carmen have fewer tapes than Rafael ?

(1) Rafael has more than 5 tapes.
(2) Carmen has fewer than 12 tapes.


I would say B.

C = 2R -12

C can be only be positive..so R has to be more than 5...

And for every value between 5 and 12 , not inclusive.. C < R

thanks


Shouldn't the equation be:

C=(R/2)-12

and hence give an answer of D.
Senior Manager
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Location: Uruguay
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 [#permalink] New post 21 Sep 2003, 07:31
"If Carmen had 12 more Tapes" : C+12
"she would have": =
"twice as many tapes as Rafael" : 2*R

C+12=2R

C=2R-12
  [#permalink] 21 Sep 2003, 07:31
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If Carmen had 12 more tapes, she would have twice as many

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