X and Y are partners in a business. They invest in the ratio 5 : 6, at the end of 8 months X withdraws his capital. If they receive profits in the ratio of 5 : 9. Find how long Y's investment was used ?

• ক 14 months
• খ 15 months
• গ 10 months
• ঘ 12 months ✅ সঠিক উত্তর