Q'3

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Source: — Data Sufficiency |

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by pahwa » Thu Oct 11, 2007 1:27 am
Statement 1 is sufficient.
Statement 2 isnt. take values and put in

for x>0, y>0, if x<y, then nothing can be commented.
If x=-2, y=2, we can say that x<y but x^2=y^2 (only this case)
Insuff.