Quadratic Equations

Quantitative Aptitude ( CCS)

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I. 2x² – 19x + 42 = 0

II. 3y² – 13y + 12 = 0

x > y

x < y

x ≥ y

x ≤ y

Explanation:

2x² – 19x + 42 = 0
2x² – 12x – 7x + 42 = 0
Gives x = 7/2, 6
3y² – 13y + 12 = 0
3y² – 9y + 4y + 12 = 0
Gives y = 4/3, 3
Put all values on number line and analyze the relationship
4/3…… 3…… 7/2….. 6

By: Amit Kumar

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