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First of all to format formulas mark and push [ m] button.

If x, y, p, and q are positive, is x>=y?

Question: is \(x\) more than or equal to \(y\) (is \(x\geq{y}\))?

(1) \(\frac{px}{qy}=\frac{p}{q}\) --> reduce by \(\frac{p}{q}\) --> \(\frac{x}{y}=1\) --> \(x=y\), so we can answer yes to the question: \(x\) is equal to \(y\). Sufficient.

(2) \(xy=p\) --> Clearly not sufficient (if \(x\), \(y\) and \(p\) equal to 1, 2, and 2 respectively then the answer is NO but if they equal to 2, 1 and 2 then the answer is YES).

First of all to format formulas mark and push [ m] button.

If x, y, p, and q are positive, is x>=y?

Question: is \(x\) more than or equal to \(y\) (is \(x\geq{y}\))?

(1) \(\frac{px}{qy}=\frac{p}{q}\) --> reduce by \(\frac{p}{q}\) --> \(\frac{x}{y}=1\) --> \(x=y\), so we can answer yes to the question: \(x\) is equal to \(y\). Sufficient.

(2) \(xy=p\) --> Clearly not sufficient (if \(x\), \(y\) and \(p\) equal to 1, 2, and 2 respectively then the answer is NO but if they equal to 2, 1 and 2 then the answer is YES).

Answer: A.

Hi,

the statement 1 is just telling us that x = y ...but its not giving ny info that if x>y...so its not sufficient so how can v mark the answer as A ...

the statement 1 is just telling us that x = y ...but its not giving ny info that if x>y...so its not sufficient so how can v mark the answer as A ...

The question asks is \(x\geq{y}\)? If we know that x=y then we can answer YES to the question, its very simple. Let me know if it s clear
_________________

It is beyond a doubt that all our knowledge that begins with experience.

First of all to format formulas mark and push [ m] button.

If x, y, p, and q are positive, is x>=y?

Question: is \(x\) more than or equal to \(y\) (is \(x\geq{y}\))?

(1) \(\frac{px}{qy}=\frac{p}{q}\) --> reduce by \(\frac{p}{q}\) --> \(\frac{x}{y}=1\) --> \(x=y\), so we can answer yes to the question: \(x\) is equal to \(y\). Sufficient.

(2) \(xy=p\) --> Clearly not sufficient (if \(x\), \(y\) and \(p\) equal to 1, 2, and 2 respectively then the answer is NO but if they equal to 2, 1 and 2 then the answer is YES).

Answer: A.

from A we get x=y only , but what abut x > y ? Answer should be E

First of all to format formulas mark and push [ m] button.

If x, y, p, and q are positive, is x>=y?

Question: is \(x\) more than or equal to \(y\) (is \(x\geq{y}\))?

(1) \(\frac{px}{qy}=\frac{p}{q}\) --> reduce by \(\frac{p}{q}\) --> \(\frac{x}{y}=1\) --> \(x=y\), so we can answer yes to the question: \(x\) is equal to \(y\). Sufficient.

(2) \(xy=p\) --> Clearly not sufficient (if \(x\), \(y\) and \(p\) equal to 1, 2, and 2 respectively then the answer is NO but if they equal to 2, 1 and 2 then the answer is YES).

Answer: A.

from A we get x=y only , but what abut x > y ? Answer should be E

The answer is A, not E.

The question asks: is x greater than or equal to y. (1) says that x IS equal to y, so we have an YES answer to the question.
_________________

First of all to format formulas mark and push [ m] button.

If x, y, p, and q are positive, is x>=y?

The question asks: is x greater than or equal to y. (1) says that x IS equal to y, so we have an YES answer to the question.[/quote][/quote] OK , so does it mean its an OR condition and not AND ? Is that a general rule when >eq or <eq occurs?

I used to think in DS , we need to suffice to all conditions, so asked for AND conditiom

Actually it has nothing to do with DS. \(\geq\) sign in mathematics translates to greater than or equal to.

Also, how can x be greater than AND equal to y?

You have a point but if x \(\geq\) y, and we have a solution x = y, it obviously does not mean x has to be gretaer than y, or if x is \(\geq\) y , it does not mean x = y, I was of the view that x should fit in the equality i.e \(\geq\)

I used to think in DS , we need to suffice to all conditions, so asked for AND conditiom

Actually it has nothing to do with DS. \(\geq\) sign in mathematics translates to greater than or equal to.

Also, how can x be greater than AND equal to y?

You have a point but if x \(\geq\) y, and we have a solution x = y, it obviously does not mean x has to be gretaer than y, or if x is \(\geq\) y , it does not mean x = y, I was of the view that x should fit in the equality i.e \(\geq\)

You are missing a point. If x=y, it's OK to write: \(x\geq{y}\) --> \(2\geq{2}\).
_________________

Its been long time coming. I have always been passionate about poetry. It’s my way of expressing my feelings and emotions. And i feel a person can convey...

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