Answer:
10.25%
Step-by-step explanation:
The requirement which is Coupon rate can be calculated using EAR formula.
EAR = (1 + APR/n)^n - 1
EAR = (1 + 10.00%/2)^2 - 1
EAR = (1 + 0.1/2)^2 - 1
EAR = (1 + 0.05)^2 - 1
EAR = (1.05)^2 - 1
EAR = 1.1025 - 1
EAR = 0.1025
EAR = 10.25%
10.25% is the coupon rate for annually paying bond.