Kashif and Nadeem started a business together. Kashif invested three times the amount Nadeem did and kept his investment for twice the duration compared to Nadeem. If Nadeem's share of the profit is Rs. 4000 and the profit is divided based on the product of investment amount and investment time, what is the total profit earned?
Explanation
Let Nadeem's investment be 1 unit for 1 unit of time, so his share is 1 × 1 = 1. Kashif's investment is 3 times the amount and for double the time, so his share is 3 × 2 = 6. The profit ratio is Kashif : Nadeem = 6 : 1. Since Nadeem's profit is Rs. 4000, total profit = 7 × 4000 = Rs. 28,000.