In expressing a length 81.489 km as nearly as possible with three significant digits, find the percentage error?
Options:	A) 0.075%	B) 0.156%	C) 0.013%	D) 0.048%	E) 0.152%
Error = 81.5-81.489= 
<gadget id="calculator">81.5-81.489</gadget>
<output>0.011</output>
0.011   Required percentage= (0.011/81.489)*100 = 0.013%   Answer is 0.013%
<result>C</result>
In expressing a length 81.489 km as nearly as possible with three significant digits, find the percentage error?