अमित, गोकुल और राजा एक साझेदारी में प्रवेश करते हैं। अमित कुल पूंजी का एक-तिहाई योगदान देता है, जबकि गोकुल उतना ही योगदान देता है जितना अमित और राजा मिलकर देते हैं। यदि वर्ष के अंत में कुल लाभ 1,14,000 रुपये है, तो राजा को कितना लाभ (रुपये में) प्राप्त होगा?

Three partners invested in a business in the ratio 8:5:4. They invested their capital for 3 months, 10 months, and 9 months respectively. What was the ratio of their profits?

A started a business with an investment of ₹21,000 and after a few months, B joined him with an investment of ₹15,000. At the end of the year, the total profit was divided between them in the ratio 12 : 5. After how many months did B join the business?