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Master | Next Rank: 500 Posts
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by bacali » Tue Nov 25, 2008 8:12 am
If x/600 = y/300, is y equal to 1,000?


(1) x + y = 3,000
(2) 3x = 6,000


OA: D
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Source: — Data Sufficiency |
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by jimmiejaz » Tue Nov 25, 2008 8:34 am
Given x=2y, we want to know is y=1000.
from 1,
x+y =3000
2y+y=3000
y=1000, hence suff. eliminate B,C,E

From 2
x=2000
put in given eqn..
2y=2000
y=1000

Hence D
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by rohangupta83 » Tue Nov 25, 2008 8:35 am
x/600 = y/300

or x/2 = y

or x =2y

Statement 1: X + y = 3000

substituting x = 2y in statement 1

we get:

2y + y = 3000
or y=1000 - SUFFICIENT

Statement 2: 3x = 6000
substituting x = 2y

3(2y) = 6000
6y = 6000
y=1000 - SUFFICIENT

imo D
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