Question

Thor earned 150 points on a school assignment. Because the assignment was turned in late, the score was reduced to 69 points. What was the percentage decrease in the score?

Answer 1

`\begin{gathered} \text{decrease}=150-69=81 \\ \text{percentage decrease=}(81)/(150)*100 \\ \text{percentage decrease=}(8100)/(150) \\ \text{percentage decreasde=}54\text{ \%} \end{gathered}`