Target Exam

CUET

Subject

Applied Maths. Section B2

Chapter

Numbers, Quantification and Numerical Applications

Question:

The inequality representing the solution set is :

A. x ≥ 5

B. x ≤ -5

C. |x|≥ 5

D. |x| > 5

E. |x| ≤ 5

Choose the correct answer from the options given below :

Options:

C only

A, B only

E only

A, B, C only

Correct Answer:

A, B, C only

Explanation:

The correct answer is Option (4) → A, B, C only

Analyzing the Number Line

  • The Region to the Left: There is a solid ray starting at $-5$ and going toward $-\infty$. This represents all values where $x \leq -5$.

  • The Region to the Right: There is a solid ray starting at $5$ and going toward $\infty$. This represents all values where $x \geq 5$.

  • The Dots: The dots at $-5$ and $5$ are solid (closed), meaning those specific numbers are included in the solution set.

Given Options:

  • A ($x \geq 5$): This correctly describes the right-hand side of the graph.

  • B ($x \leq -5$): This correctly describes the left-hand side of the graph.

  • C ($|x| \geq 5$): This is the absolute value representation of the union of A and B. It means "the distance from zero is 5 or more," which covers both $x \geq 5$ and $x \leq -5$.

  • D ($|x| > 5$): This is incorrect because it uses a "greater than" sign without the "equal to" component, which would require open circles on the graph.

  • E ($|x| \leq 5$): This is incorrect because it represents the interval between $-5$ and $5$ (the unshaded part of this graph).