you invested in a govenrment bond which pays 18% coupon interest annualy. the bond has 3 years to maturity and the interest rate in the economy is 20%. the par value of the bond is 1.000tl. a) what is the price of the bond? b) what is the duration of the bond? c) f market interest rate is dropped by 1%, what is the approximate % change in the price of the bond? calculate your solutions using the duration approach.