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happyking
09-29-2003, 02:00 AM
If x, y, p, and q are positive, is x y ?
(1) px/qy=p/q
(2) xy = p

Ans is A.
But is x=y "derived from (1) " sufficient to answer is x >=y?

doodlee
09-29-2003, 02:46 PM
Happyking,
I am assuming the question was "Is x >=y" (typo)
so all you have to do is ans. yes or no. From statement (1) we see that x=y so we can say "Yes, x IS > = to y ". i.e. it satisfies one of the condiitions (=) because we just saw that x=y. Hope this helps.

manish2003
09-29-2003, 03:52 PM
This is an interesting problem. This can confuse quite a few brains here. I also think x=y is good enough to say that x>=y

- Manish

vreddy
04-26-2004, 09:46 AM
(x>=y) = x is greater than OR equal to y. It is a disjunct, whose resultant is true if either one is true.