Answer:
1) Buy 10 ounces of gold with the 350 dollars
2) Sell the 10 ounces of gold for £200
3) Exchange £200 for 360 dollars
Step-by-step explanation:
Due to the difference between the exchange rate in gold and currency, a 2.1% (1.80 / 1.75) advantage can be obtained.
You start in the gold market with 350 dollars which are equal to 10 ounces of gold which are equal to £200. This according to the gold prices, witch generate a 1.75 exchange rate.
Then you go to the financial market where the exchange rate is larger (1.80) and with the £200 you get 360 dollars.