View Full Version : is x=y sufficient for x>=y?

happyking

09-29-2003, 02:00 AM

If x, y, p, and q are positive, is x ¡Ý 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.