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Number theory

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by pbanavara » Mon Nov 10, 2008 6:08 pm
If y > 0, is y greater than x ?

(1) 3x = 2y
(2) x + y = 5

Shouldn't the answer be D ?

the OA is A

x+y = 5 also answers the question is y > x : No

Your thoughts please
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Source: — Data Sufficiency |
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by vishubn » Mon Nov 10, 2008 6:28 pm
A) says 3x=2y

where y =(3/2) times x ... where y is def > x

B)x+y=5... where two unknowns ! and its awlays Insuffienct

just in case !!

assusme :

x=3, y=2

where y>0 and also 3+2=5 but here x>y

vice versa !! Inssuficent


OA A

Vishu
Last edited by vishubn on Mon Nov 10, 2008 9:54 pm, edited 1 time in total.
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by pbanavara » Mon Nov 10, 2008 6:31 pm
vishubn wrote:A) says 3x=2y

where y =(3/2) times x ... where y is def > x

B)x+y=5... where two unknowns ! and its awlays Insuffienct

just in case !!

assusme :

x=3, y=2

where y>0 and also 3+2=5 but here x>y

vice versa !! Inssuficent


OA D

Vishu
Thanks that helps .. I should've just plugged in numbers
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by stop@800 » Mon Nov 10, 2008 7:58 pm
vishubn wrote:A) says 3x=2y

where y =(3/2) times x ... where y is def > x

B)x+y=5... where two unknowns ! and its awlays Insuffienct

just in case !!

assusme :

x=3, y=2

where y>0 and also 3+2=5 but here x>y

vice versa !! Inssuficent


OA D
OA A


Vishu
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