Answer:
the bonds' current market value = PV of face value + PV of coupon payments
a. The bond has a 6 percent coupon rate.
PV of face value = $1,000 / (1 + 5%)²⁴ = $310.07
PV of coupon payments = 30 x 13.799 (PV annuity factor, 5%, 24 periods) = $413.97
bond's market value = $724.04
b. The bond has a 8 percent coupon rate.
PV of face value = $1,000 / (1 + 5%)²⁴ = $310.07
PV of coupon payments = 40 x 13.799 (PV annuity factor, 5%, 24 periods) = $551.96
bond's market value = $862.03