Answer:
less than 6%
Step-by-step explanation:
when a bond trades at a premium, it means the bond's coupon rate was higher than the market rate, so investors are willing to pay more to purchase the bond, e.g. bond's face value is $1,000, if it is sold at a premium its market price will be higher than $1,000.
To determine the price of a bond sold at a premium or at a discount, you must determine the present value of the coupons paid plus the face value at maturity date. But if you are going to do this manually, for a bond that sells at a premium and its coupon rate is 6%, the actual bond yield will be lower than 6%.