An investor pays ₱1,100,000 for a mine which will yield a net income of ₱200,000 at the end of each year for 10 years and then will become useless. He accumulates a replacement fund at 4.5%. At what...

 An investor pays ₱1,100,000 for a mine which will yield a net income of ₱200,000 at the end of each year for 10 years and then will become useless. He accumulates a replacement fund at 4.5%. At what rate (%) does he receive interest on his investment at the end of each year? ANSWER WITH COMPLETE SOLUTION