Answer: It concludes that black line is shorter than gray line.
Step-by-step explanation:
Since we have given that
Clue 1: A black line is shorter than a white line
Mathematically, it is expressed as
Black < White
Clue 2: the white line is shorter than a gray line.
Mathematically, it is expressed as
White < Gray
So, Combining both the statements, we yield that
Black < White < Gray
So, it concludes that black line is shorter than gray line.