Are positive integers p and q both greater than n? 1. p-q is : DS Archive
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# Are positive integers p and q both greater than n? 1. p-q is

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Are positive integers p and q both greater than n? 1. p-q is [#permalink]

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17 Jun 2008, 16:49
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Are positive integers p and q both greater than n?

1. p-q is greater than n
2. q>p

Please make sure to explain your working for statement 1.

Thanks!
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Re: DS: Inequalities [#permalink]

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17 Jun 2008, 17:02
You are being asked the following:
p>n?
q>n?

1) p-q > n
a. p=4, q=1 -> 4-1>2 (this satisfies statement 1), now lets see if it satisfies the questions p>n(4>2) ok, BUT q=1 and 1 is not greater then 2
b. p=5, q=3 -> 5-3>1 (this satisfies statement 1), now lets see if it satisfies the questions p>1(5>1) ok, AND q=3 and is greater then 1
Not sufficient, since we have two different answers.

b. q>p says nothing about n...Not sufficient

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Re: DS: Inequalities [#permalink]

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17 Jun 2008, 20:16
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Are positive integers p and q both greater than n?

1. p-q is greater than n
2. q>p

St1: p-q >n is insuffi...

St2: nothing abt n so insuffi

St1+2: since q>p --> p-q <0 now frm st1: n <p-q which implies n<0 and since p and q both are >0 from que stem

C should be the answer!!!
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Re: DS: Inequalities [#permalink]

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17 Jun 2008, 20:45
Yep C for me too

Statement 1 ) p- q > n

we cant say what can be the value of p , q and n

for eg P can be 9 q can be 2 and n can be 6
P can be 22 q can be 8 and n could be 6 so insufficient

statement 2 says q > p , insufficient when alone

combine both - sufficient

statement 2 implies that p-q is negative , hence n wil be negative too , so if n is negative p and q bein positive are both greater than n
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Re: DS: Inequalities [#permalink]

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19 Jun 2008, 05:30
I just got this one yesterday on a GMATprep test. I actually got a bunch of inequality DS questions. Are there good standard techniques for solving these types? I feel like they are the "worst of both worlds" types to questions as they aren't just standard Quantitative questions nor are they equalities, which are much easier to solve.
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Re: DS: Inequalities [#permalink]

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20 Jun 2008, 16:15
sorry about that......forgot to consider the combined case...thanks
Re: DS: Inequalities   [#permalink] 20 Jun 2008, 16:15
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# Are positive integers p and q both greater than n? 1. p-q is

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