) An engineer borrowed 30.000 TL from a bank on the condition of making six equal year-end payments at 8% interest. The bank has agreed to lower the interest on the remaining debt if interest rates in Turkey are lowered before the debt is fully repaid. Three years later, when the third payment came, the bank decided to reduce the interest rate on the remaining debt from 8% to 7%. How much is each of the equal end-of-year payments made in the first three years? How much each of the equal end-of-year payments over the last three years?