एक व्यापार में तीन साझेदारों A, B और C में से, B की पूंजी C की पूंजी के तीन गुने और A की पूंजी के दो गुने के अंतर के आधे के बराबर है। यदि वर्ष के अंत में, उन्हें कुल ₹27,460 का लाभ होता है, तो C का हिस्सा (₹ में) क्या है?

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?