Teena, Reena and Sheena start a business with investment of respectively ₹ 24000, ₹ 28000 and ₹ 20000. Teena invests for 8 months, Reena invest for 10 months and Sheena invests for one year. If the total profit at the end of year is ₹ 25810, then what is the share of Teena?

Investment of Teena = Rs.24000
Duration of Teena = 8 months
Total investment of Teena = $$Rs.24000 \times 8$$
Investment of Reena = Rs.28000
Duration of Reena = 10 months
Total investment of Reena = $$Rs.28000\times10$$
Investment of Sheena = Rs.20000
Duration of Sheena = 12 months
Total investment of Sheena = $$Rs.20000\times12$$
Ratio of profits = Ratio of investments = $$Rs.24000 \times 8 : Rs.28000\times10 : Rs.20000\times12 = 24 : 35 : 30$$
Given, Total profit = Rs.25810
Then, Profit of Teena = $$\dfrac{24}{89} \times 25810 = Rs.6960$$