Question

13. There are ten questions on a test. Sophie answered 8 of them correctly. Write a decimal to show what part of the test she answered correctly.

Answer 1

Given data:

The total numbers of questions are n=10.

The numbers of the questions Sophie answered right are r=8.

The expression for the part Sophie answered right is,

$\begin{gathered} s=\frac{r}{n} \\ =\frac{8}{10} \\ =0.8 \end{gathered}$

Thus, the part Sophie answered right is 0.8.