(2) 1.09577

(3) Yen /HKD=0.06393/4 16, GBP/HKD =11.61126/3741

(4) 1. 1730/80

(5) 1.2040/90

(6) The profit with arbitrage opportunity is $38,425.

(7) Profit, with a profit of $27.6547 million.

2. (8) Profit 13569 USD.

(9) 1 $85,837,000 needs to be paid; 2 need to pay $8643 1 000; 3. Overpayment of 05,934,000 dollars.

3. (10) The interest rate for selling Australian dollars is 1.3540, and the interest rate for buying Australian dollars is 1.3520.

(1 1) 123.78 Friend, did you mistake USD/JPY for JPY/USD?

(12) Profit: 1.7 1.4 million Canadian dollars.