A 3% Coupon, would mean 3% interest per year.
Since there are 12 months to a year, we would need to find the amount of interest for the year, then divide it by 2.
3% or 1,000 is $30. He gets $30 interest per year. Now, we need to divide that by 2, and we will get A. He gets $15 interest every 6 months.