Answer:
YTM = 6.818%
Step-by-step explanation:

C= cash payment of the bond: 50,000 x 19%/2 = 4,750
F= Face Value= 50000
P= purchase value=60000
n= number of payment= 5 years at 2 payment a year = 10

Important: it is better to calculate the YTM using a financial calculator, this is an approximation