अरुण, बाला और चंद्रू एक साझेदारी में प्रवेश करते हैं। अरुण कुल पूंजी का एक-तिहाई योगदान देता है, जबकि बाला, अरुण और चंद्रू के कुल योगदान के बराबर योगदान देता है। यदि वर्ष के अंत में लाभ 84,000 रुपये है, तो चंद्रू को कितना लाभ 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?