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Question 10, section 6, 1000 DS

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Question 10, section 6, 1000 DS

by isisalaska » Sun Jan 21, 2007 4:36 pm
10. If x and y are positive, is x/y greater than 1?
(1) xy >1
(2) x – y > 0

Why is B? what if y is a (-) number that will not make x/y>1
x - (-y) will still be >0 BUT x/-y will not be >1
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by serg » Thu Jan 25, 2007 3:01 pm
Hi, Will try to help. We are asked if x/y>1 Yes or no question. This means that we have to determine if x is <> y. Statement 1 says that xy>1. From this one we cannot determine which is greater: x or y so it does not help. Statement 2 says that x-y>0 or x>y which is what we need. So, yes, x/y is >1.
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by isisalaska » Thu Jan 25, 2007 3:46 pm
Thanks serg :D
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by isisalaska » Thu Jan 25, 2007 4:43 pm
Thanks serg :D
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