Intercontinental Baseball Manufacturers (IBM) has an outstanding bond with a $1,000 face value that matures in 10 years. The bond, which pays $25 interest every six months ($50 per year), is currently selling for $598.55. What is the bond's yield to maturity?

You can use a YTM calculator that is online, just Google it to solve this.

To solve this without a calculator you will start with the following information, which you have:
C = coupon/interest payment (annual amount)
F = face value of the bond
P = price of the bond
N = number of years to maturity
YTM = yield to maturity (this will be an approximate number)

Here are the steps:
First F - P then divide it by N
Now add this number to C, this is your numerator

Now F + P and divide it by 2, this is your denominator

Finally take your numerator and divide it by the denominator, then multiply this number by 100 to get your YTM as a percent.