Hamilton wants to accumulate ₺ XXXXXXXXXXat the end of 4 years. It starts quarterly payments in a bank account which pays J4= 6% (annual interest rate with quarterly compounding). a) Find the size of...

 Hamilton wants to accumulate ₺ 24.000 at the end of 4 years. It starts quarterly payments in a bank account which pays J4= 6% (annual interest rate with quarterly compounding).

a) Find the size of quarterly payments ?

b) If, after 2 years, bank switches the rate to J4= 8%, what would be the size of quarterly payments for last 2 years required to meet the ₺15.000 goal?