The yield of a 7 year maturity Zero is 5.47%. The yield of a 9 year maturity Zero is 5.52%. The Forward Rate from the 7th to the 8th year is 5.49%. What is the Forward Rate from the 8th to the 9th year:

Explanation: The price of a 7 year maturity Zero is $1/1.0547^7 = $0.688807, and of a 9 year maturity Zero is $1/1.0552^9 = $0.616576. Hence the return that can be obtained from the 7th to the 9th year by trading Zeros is $0.688807/$0.616576 - 1 = 11.7147%. And the return from the 8th to the 9th years that can be guaranteed TODAY by trading Zeros and entering into a Forward Contract from the 7th to the 8th years is: 1.117147/1.0549 - 1 = 5.9008%.