Whole numbers greater than zero are called Positive Integers.
The numbers less than zero are called negative integers.
Positive integers are represented towards left of zero (0) on a number line.
Positive integers are always greater than negative integers.
In the above figure, the letter R is on the top.

The numbers on the right of zero are positive integers on the number line.
A. 5
B. 0.5
C. 5.5
D. 55.5
Correct Answer: A
Step 1: Whole numbers greater than zero are called Positive Integers.
Step 2: 0.5, 5.5, and 55.5 are the decimal numbers and are not integers.
Step 3: Here, only 5 is the positive integer.
Q1: Which of the following is a positive integer?
Q2: Which number is NOT a positive integer?
Q: Is zero a positive integer?
A: No, zero is neither positive nor negative. It is an integer, but not a positive one.
Q: Are fractions positive integers?
A: No, positive integers are whole numbers only. Fractions are not integers.