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inequity p19

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inequity p19

by magical cook » Sat Dec 22, 2007 6:17 pm
W+X <0>0?

1) X+Y<0
2) Y<X<W
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by sujaysolanki » Sun Dec 23, 2007 5:16 am
could you please repost the question...thanks
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by magical cook » Sun Dec 23, 2007 5:56 am
Sorry about that. Pls see attached.
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by beingAndNothing » Sun Dec 23, 2007 8:42 am
1) X+Y < 0

2) Y<X<W>Y or W-Y >0.

Hence (B).
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by Auzbee » Tue Dec 25, 2007 2:06 pm
Being and Nothing,
What about 1. ? Is is sufficient or not?
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by beingAndNothing » Tue Dec 25, 2007 3:00 pm
Auzbee:

I donot think (1) is sufficient.

X+Y<0
W+X<0

We can add the two and we get

W+Y+2X<0, which is not close to the inequality in question. Note that
you cannot subtract the two inequalities as subtraction changes the sign.
Hope this helps.
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