Answer: $6.08
Step-by-step explanation:
To calculate the coupon payment it must have paid in December 2018 if the CPI was 247.91 in December 2017 and 251.23 in June 2018 will be:
Face value = $1000
Coupon rate = 1.2%
= Face value × Coupon rate / 2 × CPI June 2017 / CPI December 2018
= (1000 × 1.2%)/{(2 × 251.3)/247.91}
= 12/(502.6/247.91)
= 12/2.027
= $6.08