Subject
Quantitative Aptitude
Topic
Algebra
In the following question, one or two equation(s) is/are given. On their basis you have to determine the relation between x and y and then give answer
I. x2+ 3x + 2 = 0
II. 2y2= 5y
In the following question, one or two equation(s) is/are given. On their basis you have to determine the relation between x and y and then give answer I. x2+ 3x + 2 = 0 II. 2y2= 5y
ক)
x < yখ)
x > yগ)
x ≤ yঘ)
x ≥ yঙ)
x = yExplanation
We will separately solve both equations. Equation 1: x 2 + 3x + 2 = 0 ⇒ x 2 + 2x + x + 2 = 0 ⇒ x (x + 2) + 1 (x + 2) = 0 ⇒ (x + 2) × (x + 1) = 0 ⇒ x = -2 or, x = -1 Equation 2: 2y 2 = 5y ⇒ 2y 2 – 5y = 0 ⇒ y = 0 or, y = Both values of y are positive while both values of x are negative. ∴ y > xRelated questions
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