MathDB
Approximation

Source: AHSME 1986 problem 8

September 30, 2011
geometryAMC

Problem Statement

The population of the United States in 1980 was 226,504,825226,504,825. The area of the country is 3,615,1223,615,122 square miles. The are (5280)2(5280)^{2} square feet in one square mile. Which number below best approximates the average number of square feet per person?
<spanclass=latexbold>(A)</span> 5,000<spanclass=latexbold>(B)</span> 10,000<spanclass=latexbold>(C)</span> 50,000<spanclass=latexbold>(D)</span> 100,000<spanclass=latexbold>(E)</span> 500,000 <span class='latex-bold'>(A)</span>\ 5,000\qquad<span class='latex-bold'>(B)</span>\ 10,000\qquad<span class='latex-bold'>(C)</span>\ 50,000\qquad<span class='latex-bold'>(D)</span>\ 100,000\qquad<span class='latex-bold'>(E)</span>\ 500,000