What position is equivalent to a long forward contract to buy an asset at K on a certain date and a long position in a European put option to sell it for K on that date?

AppendixLO1 Estimate the interest rate paid by P&G on the 5/30 swap in Business Snapshot 5.4 if

(a) the CP rate is 6.5% and the Treasury yield curve is flat at 6%

and

(b) the CP rate is 7.5% and the Treasury yield curve is flat at 7% with semiannual compounding.

AppendixLO1