Question Details

Directions (42-46) : In each question two equations numbered (I) and (II) are given. You have to solve both the equations and mark appropriate answer.


x2-2x-24=0

y2+3y-40=0

Options

A

If x<y

B

If x>y

C

If x>=y

D

If x<=y

E

If x=y or no reletion can be established

Show Answer

Correct Answer :

Option E

If x=y or no reletion can be established

Solution :

The correct option is: If x=y or no reletion can be established


To determine the relationship between x and y, we need to solve both given quadratic equations step-by-step.


Step 1: Solve Equation (I) for x:

The first equation is:

x2-2x-24=0

We look for two numbers that multiply to give -24 and add up to -2. These numbers are -6 and 4.

x2-6x+4x-24=0

x(x-6)+4(x-6)=0

(x-6)(x+4)=0

Setting each factor equal to zero, we get:

x=6 or x=-4


Step 2: Solve Equation (II) for y:

The second equation is:

y2+3y-40=0

We look for two numbers that multiply to give -40 and add up to 3. These numbers are 8 and -5.

y2+8y-5y-40=0

y(y+8)-5(y+8)=0

(y+8)(y-5)=0

Setting each factor equal to zero, we get:

y=-8 or y=5


Step 3: Compare the values of x and y:

Let's compare each value of x with each value of y:

1. When x=6 and y=-8: x>y

2. When x=6 and y=5: x>y

3. When x=-4 and y=-8: x>y

4. When x=-4 and y=5: x<y


Since we obtain both x>y and x<y, no definite relationship can be established between x and y.

Unlock Our Free Library

Access expert-curated educational resources and study materials—completely free.

Discover more resources

You may also like

Mock Tests

View All
  • CTET
  • intermediate
  • No time limit
  • child development and pedagogy, mathematics, social science

  • SSC
  • intermediate
  • 2 hours and 30 mins
  • child development and pedagogy, mathematics, social science

Ask AI Tutor
5 left
Q1 View Question & Options
AI Tutor is solving this question...
Reading question context & options...