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Easy one

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Source: — Problem Solving |

Re: Easy one

by mohitsharda » Fri Sep 25, 2009 9:20 pm
ern5231 wrote:10) What is the value of (X ^ 2-X-2) (Y ^ 2-Y-2)?

(1) X=2
(2) Y=3

Simple but I am just confirming

Statement 1:
x= 2 => x^2 - x - 2 = 0
=> irrespective of y, the product will be y.
SUFFICIENT

Statement 2:
y =3 => y^2 - y -2 = 4
So, the product will depend on the value of x.
INSUFFICIENT

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by ern5231 » Sat Sep 26, 2009 2:30 am
OA is a
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