Answer:
The correct option is 1.
Step-by-step explanation:
The set of all numbers which are defined in the form of p/q where, q≠0 is known as set of rational numbers.
The negative number with higher absolute value is smaller. The positive number with higher absolute value is larger.
The given numbers are
-0.5, -1/5, 1/9, 1
We need to arrange these rational numbers from least to greatest.
[tex]-\frac{1}{5}=-0.2[/tex]
[tex]\frac{1}{9}\approx 0.11[/tex]
We can say that
-0.5 < -0.2 < 0.11 < 1
-0.5 < -1/5 < 1/9 < 1
The required arrangement is -0.5, -1/5, 1/9, 1. Therefore the correct option is 1.
