 
<translate> Sylvia tana da kashi ɗaya cikin biyar na amsoshi da ba daidai ba a cikin jarrabawar, yayin da Sergio ya sami kurakurai 4. Idan akwai tambayoyi 50, nawa ne amsoshi daidai da Sergio ya fi na Sylvia? Wani tunani? Dalili na mataki zuwa mataki: <eng> 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: 