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?
Thoughts? Step-by-step reasoning:
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.
Thus, the answer is 6.