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In the following question two equations numbered I and II are given. You have to solve both the Equations and ____ Give answer

I. \( \Large x^{2} \) - 9x + 20 = 0

II. \( \Large y^{2} \) - 13y + 42 = 0


A) x > y

B) x \( \Large \geq \) y

C) x < y

D) x < \( \Large \leq \) y

Correct Answer:
C) x < y

Description for Correct answer:
I. \( \Large x^{2} \) - 9x + 20 = 0

=> \( \Large x^{2} \) - 5x - 4x + 20 = 0

=> x ( x - 5 ) - 4 ( x - 5 ) = 0

=> ( x - 5 ) ( x - 4 ) = 0

\( \Large \therefore \) x = 5 or 4

II. \( \Large y^{2} \) - 7y - 6y + 42 = 0

=> y ( y - 7 ) - 6 ( y - 7 ) = 0

-> ( y - 6 ) ( y - 7 ) = 0

\( \Large \therefore \) y = 6 or 7

clearly, x < y

Part of solved Linear Equations questions and answers : >> Aptitude >> Linear Equations




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