 
<translate> Sylvia nwetara otu ụzọ n'ụzọ ise nke azịza ndị na-ezighi ezi n'ule ahụ, ebe Sergio nwetara azịza anọ na-ezighi ezi. Ọ bụrụ na e nwere ajụjụ iri ise, azịza ole ziri ezi ka Sergio nwere karịa Sylvia? Echiche ndị dị aṅaa? Ntụziaka nzọụkwụ site na nzọụkwụ: <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: 