In expressing a length 81.475 km as nearly as possible with three significant digits, find the percentage error?
Choose the correct choice from the following choices
A) 0.075%  B) 0.156%  C) 0.031%  D) 0.048%  E) 0.152%
Error = 81.5-81.475 = 0.028   Required percentage = (0.028/81.475)*100 = 0.031%   Answer is 0.031%
<result>C</result>
In expressing a length 81.475 km as nearly as possible with three significant digits, find the percentage error?