The measuring rule shows lines graded between each unit.
Each unit has four lines between them which means each line is a quarter, or 1/4 or 0.25 of each unit.
When the ruler indicates 0.5, that is shown as two quarters, or one half (that is 1/2).
Therefore when the ruler indicates
[tex]\begin{gathered} 1\frac{7}{8} \\ \text{That can be broken down into } \\ 1+\frac{2}{8}+\frac{2}{8}+\frac{2}{8}+\frac{1}{8} \\ \text{Note that }\frac{2}{8}\text{ is equivalent to }\frac{1}{4} \\ \text{Also }\frac{1}{4}\text{ is equivalent to 0.25} \\ \frac{1}{8}\text{ is half of }\frac{1}{4},\text{ and that is equivalent to half of 0.25} \\ \text{Therefore, we now have} \\ 1+0.25+0.25+0.25+0.125 \\ =1.875 \end{gathered}[/tex]The correct answer is 1.875
