The Tee Grizzley Corporation has issued zero coupon corporate bonds with five years to maturity. Investors believe there is a 60% chance that Grizzley will default on these bonds. If Grizzley does default, investors expect to receive 20% of the promised payoff at maturity. If investors require a 10% expected payoff on these bonds, what is the default risk premium on these bonds?

I assume it is like this one?

https://www.chegg.com/homework-help/corporate-finance-4th-edition-chapter-6-problem-28p-solution-9780134084169