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Re: If x and y are integers, is x/y greater than 1 ? [#permalink]
29 Apr 2012, 04:15

2

This post received KUDOS

Expert's post

monir6000 wrote:

If x and y are integers, is x/y greater than 1 ?

(1) xy > 1 (2) x – y > 0

ORIGINAL QUESTION READS:

If x and y are positive, is x/y greater than 1?

Is \frac{x}{y}>1? --> as given that y is positive we can safely multiply boith parts of inequality by it --> so the question becomes "is x>y?" OR: is x-y>0?

(1) xy>1 --> product of two numbers is more than one we can't say which one is greater. Not sufficient.

(2) x-y>1 --> x>y+1 --> as x is more than yplus 1 then it's obviously more than just y alone: x>y. Sufficient. Or: as x-y>1 then x-y is obviously more than zero --> x-y>1>0. Sufficient.

Re: If x and y are integers, is x/y greater than 1 ? [#permalink]
22 Dec 2012, 04:29

1

This post received KUDOS

Expert's post

megafan wrote:

Bunuel wrote:

monir6000 wrote:

If x and y are integers, is x/y greater than 1 ?

(1) xy > 1 (2) x – y > 0

ORIGINAL QUESTION READS:

If x and y are positive, is x/y greater than 1?

Is \frac{x}{y}>1? --> as given that y is positive we can safely multiply boith parts of inequality by it --> so the question becomes "is x>y?" OR: is x-y>0?

(1) xy>1 --> product of two numbers is more than one we can't say which one is greater. Not sufficient.

(2) x-y>1 --> x>y+1 --> as x is more than yplus 1 then it's obviously more than just y alone: x>y. Sufficient. Or: as x-y>1 then x-y is obviously more than zero --> x-y>1>0. Sufficient.

Answer: B.

Slight correction, even though your answer and your reasoning are correct, is that your reasoning for 2 does not address the question mentioned -- again, it's still correct, but want to make sure it talks about the question. It should be x-y>0 not x-y>1

The question posted by monir6000 has typos. Again:

ORIGINAL QUESTION READS: If x and y are positive, is x/y greater than 1? (1) xy>1 (2) x-y>1 _________________

Re: If x and y are ingeger, is x/y greater than 1 ? [#permalink]
28 Apr 2012, 21:04

C is the answer. 1. xy=1 says nothing about which is greater, x or y. So insufficient. 2. x-y>O i.e. X>Y So if x and y are integars so x/y >1 but if x is negative or y is negative.? It can be less than 1 also. So Insufficient. 1+2 X and y are of same sign by xy>1 and x>y so sufficient.

Re: If x and y are integers, is x/y greater than 1 ? [#permalink]
21 Dec 2012, 18:54

Bunuel wrote:

monir6000 wrote:

If x and y are integers, is x/y greater than 1 ?

(1) xy > 1 (2) x – y > 0

ORIGINAL QUESTION READS:

If x and y are positive, is x/y greater than 1?

Is \frac{x}{y}>1? --> as given that y is positive we can safely multiply boith parts of inequality by it --> so the question becomes "is x>y?" OR: is x-y>0?

(1) xy>1 --> product of two numbers is more than one we can't say which one is greater. Not sufficient.

(2) x-y>1 --> x>y+1 --> as x is more than yplus 1 then it's obviously more than just y alone: x>y. Sufficient. Or: as x-y>1 then x-y is obviously more than zero --> x-y>1>0. Sufficient.

Answer: B.

Slight correction, even though your answer and your reasoning are correct, is that your reasoning for 2 does not address the question mentioned -- again, it's still correct, but want to make sure it talks about the question. It should be x-y>0 not x-y>1 _________________

Re: If x and y are positive, is x/y greater than 1? [#permalink]
17 Aug 2014, 20:14

Referring to the same question. 1) The statement is insufficient without a doubt 2) x-y>0, in case x is 7 and y is 3. But if y is -3, then the solution will be 7-(-3)=10 which is greater than 10.

But in case y is negative, then x/y, will not be greater than 1.

Re: If x and y are positive, is x/y greater than 1? [#permalink]
18 Aug 2014, 01:58

Expert's post

omerqureshi wrote:

Referring to the same question. 1) The statement is insufficient without a doubt 2) x-y>0, in case x is 7 and y is 3. But if y is -3, then the solution will be 7-(-3)=10 which is greater than 10.

But in case y is negative, then x/y, will not be greater than 1.

Need some help here - Am i missing something?

The stem says: if x and y are positive... _________________