A small business purchased now for P50,000 will lose P9,600 each year for the first four years. An additional investment of P30,000 in the business wil required at the end of the fifth year. After 15...

A small business purchased now for P50,000 will lose P9,600 each year for the first four years. An additional investment of P30,000 in the business wil required at the end of the fifth year. After 15 years the business can be sold for P70,000. What should be the profit each year from the sixth through the fifteenth year to obtain a rate of return of 25%?