Consider 10.2 percent Swiss franc per U.S. dollar dual-currency bonds that pay $666.67 at maturity per SFr1,000 of par value. It sells at par. What is the implicit SFr per $ exchange rate at maturity? Will the investor be better or worse off at maturity if the actual SFr per $ exchange rate is SFr1.52 per $1.00? *book says 1.50 is wrong