Of 132 examinees of a certain school, the ratio of successful to unsuccessful candidates is 9 : 2. If 4 more students passed, what would have been the ratio of successful to unsuccessful students?

• ক 28 : 5 ✅ সঠিক উত্তর
• খ 9 : 2
• গ 15 : 7
• ঘ 4 : 1