Three friends, P, Q and R started a partnership business investing money in the ratio of 5 : 4 : 2 respectively for a period of 3 years. What is the amount received by P as his share in the total profit ? a. Total amount invested in the business in Tk. 22,000. b. Profit earned at the end of 3 years is $\frac{3}{8}$ of the total investment. c. The average amount of profit earned per year is Tk. 2750.