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Multiple Choice Questions

In the following question two equations are given You have to solve these equations and determine re...........

Quantitative Aptitude(IBPS RRB PO) Quadratic Equations

In the following question two equations are given. You have to solve these equations and determine relation between x and y.

I. x² - 6x - 280 = 0

II. y² + 44y + 420 = 0

This questions was previously asked in

RRB PO Prelims (21 August 2022 Shift1)

View All RRBA Previous Year Papers

x < y

x > y

x = y OR the relationship cannot be determined

x ≥ y

x ≤ y

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Explanation:

- Let's start with the first equation: $x^{2} - 6 x - 280 = 0$ .

- Solve it by factoring: $(x - 20) (x + 14) = 0$ .

- Solutions for x are $x = 20$ and $x = - 14$ .

- Now, the second equation: $y^{2} + 44 y + 420 = 0$ .

- Solve by factoring: $(y + 20) (y + 21) = 0$ .

- Solutions for y are $y = - 20$ and $y = - 21$ .

- Compare the values:

- For $x = 20$ , $20 > - 20$ and $20 > - 21$ . Thus, $x > y$ .

- For $x = - 14$ , $- 14 > - 20$ and $- 14 > - 21$ . Thus, $x > y$ .

- All values of $x$ are greater than any value of $y$ .

- Correct Answer: Option 2, x > y

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In the following question two equations are given You have to solve these equations and determine re...........

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Explanation:

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