i x ndash 12 sup2 0 ii y sup2 ndash 21y 108 0 ........

Quantitative Aptitude(IBPS CL) Quadratic Equations

Directions : In each of these questions, two equations (i) and (ii) are given. You have to solve both the equations and give answer

(i) (x – 12) ² = 0

(ii) y ² – 21y + 108 = 0

x>y

x≥y

x<y

x ≤y

x = y or no relation can be established between x and y.

(i) (x – 12) ² = 0
x = 12
(ii) y ² – 21y + 108 = 0 y ² – 12y – 9y + 108 = 0
y (y – 12) – 9 (y – 12) = 0
(y – 9) (y – 12) = 0 y = 9, 12
x ≥ y

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