Suppose that Golddy Plc is planning to sell 60,000 troy ounces of gold at some future date. The standard deviation of changes in the futures price per ounce is 20, the standard deviation of changes in the spot price per ounce is 16, and the correlation between the spot and futures price changes is 1. The spot price of gold today is $1,050 per troy ounce, and the futures price for a contract maturing in 10 months is $1094.67 per troy ounce. Golddy Plc puts on a futures hedge today and lifts the hedge after 3 months. If the contract size is 600 troy ounces, how many contracts are needed to hedge the exposure?