Sheryl correctly answered 85% of the questions on her 200-question biology final.

Fernando scored a 90% on his 180-question chemistry final.

(a) Who answered more questions correctly?

(b) Who answered more questions incorrectly?

(a) Which is greater: 85%of 200 or 20% of 180?

Do the numbers and compare.

(b) Subtract what you get in (a) from the number of q

To determine the answers to these questions, we need to calculate the number of questions answered correctly and incorrectly by both Sheryl and Fernando.

(a) To determine who answered more questions correctly, we need to find the number of questions each person answered correctly.
Sheryl correctly answered 85% of her 200-question biology final.
The number of questions Sheryl answered correctly is: 85% of 200 = (85/100) * 200 = 170
Therefore, Sheryl answered 170 questions correctly.

Fernando scored 90% on his 180-question chemistry final.
The number of questions Fernando answered correctly is: 90% of 180 = (90/100) * 180 = 162
Therefore, Fernando answered 162 questions correctly.

Comparing the numbers, we can see that Sheryl answered more questions correctly with 170 correct answers.

(b) To determine who answered more questions incorrectly, we need to subtract the number of questions answered correctly from the total number of questions.

For Sheryl:
Total questions - Correct answers = 200 - 170 = 30 questions answered incorrectly.

For Fernando:
Total questions - Correct answers = 180 - 162 = 18 questions answered incorrectly.

Comparing the numbers, we can see that Sheryl answered more questions incorrectly with 30 incorrect answers.