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Inequalities!!
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apoorva.srivastva
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if x+ y >20 and y > 30 ..can we calculate the limit of x or can we calculate the range of x- y?
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sanju09
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I don't feel I can do either of itapoorva.srivastva wrote:if x+ y >20 and y > 30 ..can we calculate the limit of x or can we calculate the range of x- y?
The mind is everything. What you think you become. -Lord Buddha
Sanjeev K Saxena
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Sanjeev K Saxena
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girish3131
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to get limit for x...
let's y = 31 then x+ 31 >20
i.e. x>=-11
adding y >30 in this eq ->
x > -11
y > 30
- -
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x- y > -41
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let's y = 31 then x+ 31 >20
i.e. x>=-11
adding y >30 in this eq ->
x > -11
y > 30
- -
--------------
x- y > -41
--------------
-
sanju09
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all comfort you needgirish3131 wrote:to get limit for x...
let's y = 31 then x+ 31 >20
i.e. x>=-11
adding y >30 in this eq ->
x > -11
y > 30
- -
--------------
x- y > -41
--------------
The mind is everything. What you think you become. -Lord Buddha
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
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girish3131
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sanju09
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Is it necessary to have greater than 30 as 31?girish3131 wrote:i didn't get .you..
wat do u mean...?
If x + 31 > 20, how's that x ≥ -11?
When y > 30 is added to x > -11, how's that x - y > -41?
Answer is compulsion to some only when it does exist, at least.
The mind is everything. What you think you become. -Lord Buddha
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001
www.manyagroup.com
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girish3131
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Dear,sanju09 wrote:Is it necessary to have greater than 30 as 31?girish3131 wrote:i didn't get .you..
wat do u mean...?
If x + 31 > 20, how's that x ≥ -11?
When y > 30 is added to x > -11, how's that x - y > -41?
Answer is compulsion to some only when it does exist, at least.
will respond .. am leaving 4 d day...
TC
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Stuart@KaplanGMAT
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We can't calculate limits like that for x.apoorva.srivastva wrote:if x+ y >20 and y > 30 ..can we calculate the limit of x or can we calculate the range of x- y?
If y = 100000, then x could be -50000.
We also can't calculate limits for x - y.
If y = 100000 and x = -50000, then x - y = -150000.
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Phirozz
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X can take any value upto infinity.apoorva.srivastva wrote:if x+ y >20 and y > 30 ..can we calculate the limit of x or can we calculate the range of x- y?
Since X can be anything its not possible to calcualte limit of x-y
