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DS4-4

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DS4-4 [#permalink] New post 11 Jun 2004, 18:27
00:00
A
B
C
D
E

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(N/A)

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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
answer with explaination
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 [#permalink] New post 11 Jun 2004, 18:58
B it is
1) can be any product that can equal 16
2) 2/3 * x/y = 2/3 * 1/1 --> x/y = 1 --> suff.
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 [#permalink] New post 12 Jun 2004, 00:06
note that X and Y can be both negative
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Re: DS4-4 [#permalink] New post 12 Jun 2004, 00:32
Bhai wrote:
answer with explaination


1 is not sufficient, while 2 is sufficient:

2x:3y = 6:9 => x:y = 3:3 = 1:1.
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 [#permalink] New post 12 Jun 2004, 00:34
stolyar wrote:
note that X and Y can be both negative


Yes, they can, but how this can influence the answer:

(x, y) <=> (-x, -y) because x:y = (-x):(-y).
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 [#permalink] New post 21 Jun 2004, 11:34
B is the ans....

A says xy= 16... thr cud be three different ratios 16*1 2*8 4 X 4...

and X and Y CUD be any one of these six values...

B) 2x/3y=2/3 and hence x/y wud b 1:1

hope that helps!

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  [#permalink] 21 Jun 2004, 11:34
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