The cost of a table and a chair are in the ratio of 4 : 5. If the cost of chair and table is increased by 20% and 10% respectively, then the new ratio of cost is

• ক 50 : 55
• খ 48 : 60
• গ 50 : 48
• ঘ 2.0381944444444 ✅ সঠিক উত্তর