I x sup2 6x ndash 135 0 II y sup2 10y ndash 144 0 ........

Quantitative Aptitude(IBPS PO) Quadratic Equations

Direction: In the following question two equations are given in variables X and Y. You have to solve these equations and determine relation between X and Y.

I. x² + 6x – 135 = 0

II. y² + 10y – 144 = 0

X > Y

X < Y

X ≥ Y

X ≤ Y

X=Y or No relation can be established

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Explanation:

I. x²+6x-135=0
x²-9x+15x-135=0
x(x-9)+15(x-9)=0
(x+15)(x-9)=0
X=-15, 9
II. y²+10y-144=0
y²+18y-8y-144=0
y(y+18)-8(y+18)=0
(y-8)(y+18)=0
Y=8,-18
Hence, option E is correct.