'X' and 'Y' entered into a partnership with their capitals in the ratio 5 : 6. At the end of 8 months, X withdraws her capital. If they receive the profit in the ratio of 5 : 9, find how long 'Y' capital was used?

• ক 10 months
• খ 8 months
• গ 12 months ✅ সঠিক উত্তর
• ঘ 9 months