Sumit, Ravi and Puneet invest ₹ 45000, ₹ 81000 and ₹ 90000 respectively to start a business. At the end of the year the total profit is ₹ 4800. 30% of the total profit gives in charity and rest is divided among them. What will be the share of Sumit?

Investment of Sumit = Rs.45000
Duration of Sumit = 1 year
Investment of Ravi = Rs.81000
Duration of Sumit = 1 year
Investment of Puneet = Rs.90000
Duration of Puneet = 1 year
Ratio of profits = Ratio of investments
= $$45000 : 81000 : 90000 = 5 : 9 : 10$$
Given, Total profit = Rs.4800
30% of total profit donated to charity
Amount donated to charity = 30% of Rs.4800 = Rs.1440
Remaining amount = Rs.4800-1440 = Rs.3360
Let the profits of Sumit, Ravi and Puneet be Rs.5x, Rs.9x and Rs.10x respectively.
Total profit = Rs.5x+9x+10x = Rs.24x
Given, 24x = 3360 => x = 140
Therefore, Profit of Sumit = 5x = 5*140 = Rs.700