तीन साझेदारों, A, B और C ने 3:2:4 के अनुपात में निवेश के साथ एक फर्म शुरू की। 6 महीने बाद, A ने अपनी पूंजी दोगुनी कर दी, B ने अपनी पूंजी आधी कर दी, और C ने अपना निवेश बनाए रखा। यदि एक वर्ष के बाद कुल लाभ Rs. 1,80,000 था, तो लाभ में B का हिस्सा क्या था?

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?