Question

Match List-I with List-II

List-I Example	List-II Type of number
(A). 2	(I). Whole Number
(B). 0	(II). Natural Number
(C). -1	(III). Rational Number
(D). 1/2	(IV). Integer

• (A) - (II), (B) - (I), (C) - (IV), (D) - (III)
• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (II), (B) - (III), (C) - (IV), (D) - (I)
• (A) - (II), (B) - (IV), (C) - (III), (D) - (I)

Hint:

Remember the hierarchy:
$\text{Natural (1,2...)} \subset \text{Whole (0,1...)} \subset \text{Integers (-1,0...)} \subset \text{Rational (1/2...)}$.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Numbers are classified into distinct mathematical sets based on their properties.
Detailed Explanation:
Let us match each example with its correct number classification:
- (A) 2: This is a positive counting number, which is a (II) Natural Number.
- (B) 0: The set of natural numbers including zero defines (I) Whole Numbers.
- (C) -1: This is a negative whole number, which belongs to the set of (IV) Integers.
- (D) 1/2: A fraction of the form $p/q$ where $q \neq 0$ is a (III) Rational Number.
This yields the matched sequence:
\[ \text{(A) - (II), (B) - (I), (C) - (IV), (D) - (III)} \]

Step 2: Final Answer:
The matching sequence corresponds to Option (A).