A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 6:7:8:9:10. In all papers together, the candidate obtained 60% of the total marks then, the number of papers in which he got more than 50% marks is

• ক 4 ✅ সঠিক উত্তর
• খ 3
• গ None of these
• ঘ 1