5. During her trip to London, Marion Ravn notices following exchange rates from a bank: Bank A: Exchange rate of Singapore dollar in US$ $ 32 Bank B: Exchange rate of pound in US$ $ 1.50 a. Marion wants to compute the cross exchange rate between pound and Singapore dollar. Show the value of 1 pound in Singapore dollars using the exchange rate given above. b. Suppose that the Bank C's quoted exchange rate of pound in Singapore dollars is S$4.50, and Marion has US$1,000 in her purse. How much profit can she make by conducting triangular arbitrage once