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smallsorrow
- Master | Next Rank: 500 Posts
- Posts: 109
- Joined: Mon Sep 08, 2008 12:47 am
If x and y are greater than 0, is x=1?
1) x/y = 1
2) xy=1
Statement 1 tells us x = 1y -> n.s.
Statement 2 tells us x = 1/y -> n.s.
So now taking 1 + 2, we get: y^2=1 -> y=1 or y=-1
Therefore x is neg or pos 1 ... hence ans is E...
Where am I wrong? cause OA is C...
1) x/y = 1
2) xy=1
Statement 1 tells us x = 1y -> n.s.
Statement 2 tells us x = 1/y -> n.s.
So now taking 1 + 2, we get: y^2=1 -> y=1 or y=-1
Therefore x is neg or pos 1 ... hence ans is E...
Where am I wrong? cause OA is C...
Last edited by smallsorrow on Wed Nov 19, 2008 2:00 am, edited 1 time in total.
