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Is x y > r s? (1) x > r and y < s? (2) y = 2, s =

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Is x y > r s? (1) x > r and y < s? (2) y = 2, s = [#permalink]

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New post 07 Aug 2008, 11:33
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A
B
C
D
E

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14. Is x – y > r – s?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.
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Re: DS inequalities [#permalink]

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New post 07 Aug 2008, 11:46
Rephrased question
Is x + s > r + y?

Statement 1:
Given x > r and s > y
Add both of them x + s > r + y
So question is answered and answer should be A or D.

Statement 2:
If you notice carefully, this is a specific instance of generic case mentioned in statement 1.
So this can also answer the question.

Answer D.

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Re: DS inequalities [#permalink]

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New post 07 Aug 2008, 17:42
x2suresh wrote:
14. Is x – y > r – s?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.


question : x – y > r – s=?
(x –r)+( s-y)>0

(1) is suffi since x-r >0 and s-y >0
(2)values given hence SUFFI

IMO D
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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 08:56
OA is D.

Thanks guys.
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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 09:02
what if i change question to

Is (x – y) / (r – s) > 1?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.

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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 09:10
durgesh79 wrote:
what if i change question to

Is (x – y) / (r – s) > 1?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.


First clarification... (x-y) is simply that.. x-y or is it |x-y|... :wink:

going with x-y then the answer still stays the same.. D no?

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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 09:24
durgesh79 wrote:
what if i change question to

Is (x – y) / (r – s) > 1?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.



B.

if r-s =0 (x – y) / (r – s) > 1 ---> undefined
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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 09:27
bhushangiri wrote:
durgesh79 wrote:
what if i change question to

Is (x – y) / (r – s) > 1?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.


First clarification... (x-y) is simply that.. x-y or is it |x-y|... :wink:

going with x-y then the answer still stays the same.. D no?


its x-y ....

and i dont think it'll be D (even if i add that "r is not equal to s" to take care of undefined issue)
Hint : 2 > -4 does not mean that 2/-4 > 1 :wink:

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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 09:38
durgesh79 wrote:
bhushangiri wrote:
durgesh79 wrote:
what if i change question to

Is (x – y) / (r – s) > 1?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.


First clarification... (x-y) is simply that.. x-y or is it |x-y|... :wink:

going with x-y then the answer still stays the same.. D no?


its x-y ....

and i dont think it'll be D (even if i add that "r is not equal to s" to take care of undefined issue)
Hint : 2 > -4 does not mean that 2/-4 > 1 :wink:


:-D that is y u r Don D

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Re: DS inequalities [#permalink]

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New post 08 Aug 2008, 10:06
durgesh79 wrote:
what if i change question to

Is (x – y) / (r – s) > 1?
(1) x > r and y < s?
(2) y = 2, s = 3, r = 5, and x = 6.

Good one

here again lets form eqn
modified question (x-r)-(s-y)>0 ?

(1) x>r and y<s x-r is +ve and s-y is +ve but we dont know whether x-r > s-y or vice versa
INSUFFI

(2)here values known the question can be answered.SUFFI
IMO B
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Re: DS inequalities   [#permalink] 08 Aug 2008, 10:06
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