Nper = 11*2 = 22 (indicates the period over which interest payments are made)
PMT = 1000*10.3%*1/2 = 51.5 (indicates sem-annual interest payments)
PV = 1000*95% = 950 (indicates the current selling price of the bonds)
FV = 1000 (indicates the face value of bonds)
Rate = ? (Indicates YTM)
YTM = Rate(Nper,PMT,PV,FV)*2 = Rate(22,51.5,-950,1000)*2 = 11.098% or 11.10%
Answer is 11.098% or 11.10%.