An engineering student answered 81 questions correctly on a 90 question test what percent of the questions did she answer correctly what percent were incorrect
[tex]\text{Percent of questions she answered correctly} = \frac{81}{90} \times100\%=90\%\\\\\text{Percent of questions she answered incorrectly} = \frac{9}{90} \times100\%=10\%[/tex]
