Cell Phone Antennas From December 2006 to December 2007
MATHEMATICS · Subjective · CBSE · Mathematics · Fractions in Disguise · Fractions in Disguise
Problem
29. Cell Phone Antennas From December 2006 to December 2007, the number of cell phone antennas in the United States grew from 195,613 to 213,299 . What was the percentage increase in U.S. cell phone antennas in that one-year period? (Source: CTIA, quoted in The World Almanac and Book of Facts 2009)