X and Y enter into a partnership with capitals in the ratio 5 : 6 and at the end of 8 months, X withdraws. If they receive profit in the ratio of 5 : 9. Find how long Y's capital was used.

• ক 8 months
• খ 11 months
• গ 12 months ✅ সঠিক উত্তর
• ঘ 9 months