x2 ndash 9x 20 0 y2 ndash 15y 54 0 ........

Quantitative Aptitude(IBPS RRB CL) Quadratic Equations

Direction () : Two equations I and II are given below in each question.You have to solve these equations and give answer

x²– 9x + 20 = 0

y² – 15y + 54 = 0

if x < y

if x > y

if x ≤ y

if x ≥ y

if x = y or no relation can be established

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Explanation:

x² – 9x + 20 = 0
=> x² – 5x - 4x + 20 = 0

=> x(x - 5) - 4(x - 5) = 0
=> (x -4) (x - 5) = 0
x = 4 , 5
y²– 15y + 54 = 0
=> y² – 9y - 6y + 54 = 0
=> y(y - 9) - 6(y - 9) = 0
=> (y - 6) (y - 9) = 0
y = 6 , 9

By: Munesh Kumari

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x2 ndash 9x 20 0 y2 ndash 15y 54 0 ........

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Explanation:

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