Answer:
The annual coupon interest rate is 4%.
Explanation:
Bond Price = C *[1 - [1/(1 + i)^n]]/i + M/(1 + i)n
Bond Price = $768
n = number of periods
= 5*2
= 10 periods
C = ?
i = interest rate
= 0.05
M = Face value
= $1,000
768 = C*[1 - {1/(1 + 0.05)^10/0.05 +$ 1,000/(1 + 0.05)^10
768 = C*[1 - (1/1.05)^10/0.05 + $1,000/(1.05)^10
768 - 613.91 = 7.72173C
C = 154.08675 /7.7213
= 19.95494
Annual = 19.95*2
= $40
Coupon rate = 40/$1,000
= 4%
Therefore, The annual coupon interest rate is 4%.