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Source: — Data Sufficiency |
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by dikku07 » Sat Sep 26, 2009 6:46 am
IMO E

statement 1)
2x-y>0
2x>y

2x may or may not greater than be Y if X is positive. but if x is negative than it can be greater or less than Y- not sufficient

statement2- not sufficient.

combined- we know that Y<0 say Y= -2 but if x is say -4 than 2x-y is not>0.
hence not sufficient

E
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Re: DS

by mohitsharda » Sat Sep 26, 2009 7:19 am
ern5231 wrote:Is X>Y?
1) 2X-Y>0
2) Y<0

Statement 1: Definitely insufficient
Statement 2: Definitely insufficient

Both combined:
we get, 2X > Y
and Y<0
=> X>Y/2
since Y <0 => Y < Y/2

=> X > Y/2 > Y
Hence C.
MS
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by rsruparelia » Sat Sep 26, 2009 8:12 am
Statement 1: 2x>y
x > y/2
Insuff.

Statement 2: Insuff.

Taking together, when y<0, y<y/2 so x>y

Answer : C
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