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

• ক 11 months.
• খ 9 months.
• গ 10 months.
• ঘ 12 months. ✅ সঠিক উত্তর