Answer:
8.91%
Explanation:
In this question We applied  the Rate formula which is presented  in the attachment below:
Data given in the question
PMT = 1,000 × 9.5% ÷ 2 = $47.50
NPER = 18 years - 2 years × 2 = 32 years
Present value = $1000 × 105% = $1,050
Assuming figure - Future value = $1,000 Â
The formula is shown below: Â
= Rate(NPER;PMT;-PV;FV;type) Â
The present value come in negative Â
So, after solving this, the yield to maturity is 8.91%