13. An investor purchased 25 ounces of gold in 2007 for a total of £16,225. When the investor sold the metal in 2012, the price of gold per gram was £50.74. The profits gained from this transaction were used to buy silver at the market price of £27.57 per ounce. What is the largest amount of silver that the investor could purchase using profits generated from selling their gold? (1 gram = 0.035274 ounces).