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by sanju09 » Thu Mar 04, 2010 6:20 am
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?
I don't feel I can do either of it
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by girish3131 » Sat Mar 13, 2010 4:56 am
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

--------------
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by sanju09 » Sat Mar 13, 2010 5:05 am
girish3131 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

--------------
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by girish3131 » Sat Mar 13, 2010 5:08 am
i didn't get .you..

wat do u mean...?
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by sanju09 » Sat Mar 13, 2010 5:28 am
girish3131 wrote:i didn't get .you..

wat do u mean...?
Is it necessary to have greater than 30 as 31?

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



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by girish3131 » Sat Mar 13, 2010 5:32 am
sanju09 wrote:
girish3131 wrote:i didn't get .you..

wat do u mean...?
Is it necessary to have greater than 30 as 31?

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.
Dear,




will respond .. am leaving 4 d day...
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by Stuart@KaplanGMAT » Sat Mar 13, 2010 12:53 pm
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?
We can't calculate limits like that for x.

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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by Phirozz » Sat Mar 13, 2010 7:59 pm
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?
X can take any value upto infinity.
Since X can be anything its not possible to calcualte limit of x-y
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