Suppose the World Demand for Iron Is About 420,000,000 Tons

Question 101
Multiple Choice

Suppose the world demand for iron is about 420,000,000 tons per year and the static reserve is 238. However, the demand for iron is increasing at a rate of 1.8%. What is the exponential reserve for iron? A) 420 B) 238 C) 145 D) 93.3