Answer:
7.18% and $951.85 
Step-by-step explanation:
For computing the present value, first we have to compute the ytm which is shown in the attachment below:
Given that
NPER = 8 years
PMT = $1,000 × 6% = $60
Present value = $930
Future value = $1,000
The formula is shown below: 
= Rate(NPER;PMT;-PV;FV;type) 
The present value come in negative 
So, after solving this, the yield to maturity is 7.18%
Now the present value is 
Future value = $1,000 
Rate of interest = 7.18% 
NPER = 8 years - 3 years = 5 years
PMT = $1,000 × 6% = $60 
The formula is shown below: 
= -PV(Rate;NPER;PMT;FV;type) 
So, after solving this, the present value is $951.85