Find the bond is overvalue/ undervalued

(June 2018 catch-up exam) A zero coupon bond at 1 year notes 98.04. The forward interest rate of 1 year within a year is 5%. A zero coupon interest bond at 3 years notes 84.99. A 3 -year bond with a coupon o The yield to maturity is 4.25%. Calculate whether this bond is correct, over- or undervalued, (exam September 2018) A zero coupon bond at 1 year