 
<translate> Sylvia nwetara azịza 50 / 5 = 10 na-ezighi ezi. Nke a pụtara na ọ zara azịza 50 - 10 = 40 ziri ezi. Sergio zara azịza 50 - 4 = 46 ziri ezi. Ya mere, Sergio nwetara azịza ziri ezi 46 - 40 = 6 karịa Sylvia. N'ihi ya, azịza ya bụ 6. <eng> 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. 