Answer:
The bond's yield to maturity is 9.45% using Excel to get exact values, and 9.59% using approximate method.
Step-by-step explanation:
We can calculate is using 2 ways, using Excel to get the exact percentage or with approximate methods, calculating the semi-annual Yield to Maturity using the following formula
![YTM_(sm) =\cfrac{PMT+\cfrac{FV-PV}n}{\cfrac{FV+PV}2}](https://img.qammunity.org/2020/formulas/business/college/3m29e8y840auz0ymxmolp7scxyjflminwi.png)
And from there we can calculate the Yield to Maturity just by multiplying the semi-annual one by 2.
Identifying the given information.
We have a period of 30 years, so for the semiannual bond we have
periods.
The face value, FV, is $1000, the coupon rate is 0.10, thus we can use them to find the interest per period PMT.
![PMT=0.10 * \cfrac{1000}{2}\\PMT=\$ 50](https://img.qammunity.org/2020/formulas/business/college/zraf2lvjxbxw8mm4j8yxxqr4q3z30ydvvk.png)
The current price of the bond, PV is $1050.
Replacing the values on the semiannual Yield to Maturity
![YTM_(sm) =\cfrac{PMT+\cfrac{FV-PV}n}{\cfrac{FV+PV}2}](https://img.qammunity.org/2020/formulas/business/college/3m29e8y840auz0ymxmolp7scxyjflminwi.png)
![YTM_(sm)=\cfrac{50+\cfrac{1000-1050}{60}}{\cfrac{1000+1050}{2}}](https://img.qammunity.org/2020/formulas/business/college/bdjoj9jrn56ku5br66n1c08h1pr4zzjp4v.png)
Simplifying we get
![YTM_(sm)=4.797\%\\](https://img.qammunity.org/2020/formulas/business/college/996z0gfdnd69dwfysfblbrdwp2uenyv4bi.png)
Finding the Yield to Maturity.
We can just multiply by 2 to get the Yield to Maturity from our previous result and rounding it to 2 decimals we get
![YTM = 2 YTM_(sm)\\YTM=9.59\%](https://img.qammunity.org/2020/formulas/business/college/wqfjgzdckl3z2gcs5qxovdhu3l71wytnoq.png)
Alternatively we can use Excel and write:
RATE(n, PMT, PV, FV)*2
That is
RATE(60,50,1050,1000)*2
And we will get the exact Yield to maturity 9.49%