The question contains a statement followed by Quantity I, Quantity II, and Quantity III. Read the statements carefully and answer the questions accordingly. 

Quantity I : M and N started the business with the investment of Rs.4000 and Rs.6000 respectively and the investment period of M and N is 6 months and 8 months respectively. Each of them took Rs.100 per month as salary after the final settlement from the total profit and the remaining profit is distributed in the ratio of the investment. If N received the total profit Rs.2800, then find the total profit?

Quantity II : 3 colleagues Praveen, kiran, rathan. entered a partnership with their initial capital in the ratio of 3: 4: 5 respectively. After the third month Praveen withdrew 1/3 rd of his initial capital and kiran withdrew half of his initial capital. After the next six months Praveen increased his capital by 100% more, kiran increased by 200% more and Rathan decreased his amount by 20%. If at the end of one year, the difference between profit share of kiran and Rathan was Rs. 6000, then find profit share of Praveen?

Quantity III : Karthik and anuragh started a business with investments in the ratio 3:4 respectively. After eight months, vineeth joined them with an investment of 25% more than the investment of anuragh. Find the profit share of vineeth out of the total profit of Rs.3,875 at the end of two years.