Answer:
a. Current spot rate / Base spot rate = Price level in home country / Price level in foreign country
CSR / 0.175 =105 / 111
CSR = (105/ 111) * 0.175
= $0.1655 / ZAR
b. Expected ZAR spot rate / Current ZAR spot rate = (1 + interest rate in home country) / (1 + interest rate in foreign country)
Expected ZAR spot rate / 0.158 = (1 + 10%) / ( 1 + 8%)
Expected ZAR spot rate = (1.1/1.08) * 0.158
= $0.1609 / ZAR
c. Expected ZAR spot rate / Current ZAR spot rate = (1 + inflation rate in home country) / (1 + inflation rate in foreign country)
Expected ZAR spot rate / 0.158 = (1 + 7%) / ( 1 + 5%)
= 1.07/1.05 * 0.158
= $0.1610 / ZAR