Chapter P, Problem 33PS

How many trees must be cut to make a trillion one-dollar bills? To answer this question, you need to make some assumptions. Assume that a pound of paper is equal to a pound of wood and also assume that a dollar bill weighs about one gram. This implies that a pound of wood yields about 450 dollar bills. Furthermore, estimate that an average tree has a height of 50ft and a diameter of 12 inches. Finally, assume that wood yields about $50{\text{ lb/ft}}^3$.