Answer:
5.36%
Explanation:
We would need to calculate the yield to maturity of the current bonds:
YTM = {coupon + [(face value - market value)/n]} / [(face value + market value)/2]
YTM = {$30 + [($1,000 - $1,083)/40]} / [($1,000 + $1,083)/2] = $27.925 / $1,041.50 = 0.026812 x 2 = 0.05362 = 5.36%
Since the bond's coupon rate is higher than the market rate, the bonds are sold at a premium. In order to sell bonds at the par value, you must lower the coupon rate.