Answer:
She get 747 questions correct and 83 questions incorrect.
Step-by-step explanation:
Given that she attempted a total of 830 questions in the quiz.
Percentage of the incorrect question = 10%
So, the number of incorrect question = 10% of 830
[tex]=\frac {10}{100}\times 830= 83[/tex]
Now, 10% of the questions are incorrect, so the percentage of correct questions = 100-10= 90%
Therefore, the number of incorrect question = 90% of 830
[tex]=\frac{90}{100}\times 830=747[/tex]
Hence, she get 747 questions correct and 83 questions incorrect.
