Answer the following question, with explanation first.
Sylvia had one-fifth of incorrect answers in the exam, while Sergio got 4 mistakes. If there were 50 questions, how many more correct answers does Sergio have than Sylvia?

6
Sylvia got 50 / 5 = 10 incorrect answers.

This means she got 50 - 10 = 40 correct answers.

Sergio got 50 - 4 = 46 correct answers.

So, Sergio got 46 - 40 = 6 more correct answers than Sylvia.

.

The answer: 6